Showing posts with label biting. Show all posts
Showing posts with label biting. Show all posts

Sunday, February 23, 2014

It's Always Something

Maisy is, to put it bluntly, a bitch. An only child most of her life, she's never really had to share. This has never been a problem in the past. Although she would try to resource guard things from the cats (who would just look at her like um, there is no way I want your stupid Kong, geesh and walk away), she's never really experienced someone fighting back.

Pyg, on the other hand, is socially confident. He doesn't start stuff and he won't brazenly steal things from Maisy. He will opportunistically steal her stuff if she gets distracted, and I've even seen him do the whole oh, I think someone's at the door bark-bark-bark... HA! SUCKER! fake out thing. But when Maisy is a bitch, it's ON.

I know I'm not alone in this; all multi-dog households are going to have the occasional disagreement. So why don't we talk about it more? Well, I've always been honest on this blog, so yes. My dogs fight sometimes.

Most of the time it's completely appropriate and involves a hard stare, a lip lift, or a brief growl, with the other dog licking his lips, looking away, or shaking off. All in all, no big deal.

But sometimes. Oh, sometimes.

I had one of those sometimes recently. I was eating a snack, and both dogs were quietly begging at my feet. In other words, just another day at la casa de los perros. Except I wasn't sharing, and this upset Maisy. I have no idea what was going on in her furry little head, but my anthropomorphic belief is that she was upset about the lack of sharing and this made her anxious/stressed/frantic/bitchy. And so she divebombed at Pyg, growling and snarling.

I did that stupid thing you're not supposed to do: I reached in to break up the fight. I gotten bitten. It was no one's fault but my own, and I think Pyg was as surprised to make contact with my arm as I was to get bitten. About the only good thing is that now I know what Pyg's bite inhibition is like (worse than I thought).

It was also the wake up call I needed to start working on the issue. I'm fortunate to have an awesome friend who currently lives with seven dogs and has a surprisingly small number of fights in her house. I emailed her, and she wrote some blog posts just for me! (Okay, fine, she was already working on them, but she finished them for me.)

Her advice ended up pretty long, so it's been split into three posts. The first one is on management, and you can read it here. For the most part, I've done a prety good job at this. The dogs already eat in their crates, but I've tightened that up to include times when I'm eating something and not sharing or when Maisy is otherwise looking stressed.

The second post is on actual training things you can do to help your dogs get along better. You can read it here. I'm only just starting on this. Pyg has pretty good impulse control, but Maisy's has really slipped over the years, so I've got a lot of work to do.

Part three will, I'm told, include case studies... I'd say that I will update this post when she updates, but, um. Probably not. Oh well. You're all smart. you can find it, I'm sure.

Anyway, I'll be sure to keep you guys updated on how things go...

Sunday, June 3, 2012

The Luxury of a Lie

As a rule, I consider myself to be a pretty honest person. Although it would have been easy to present Maisy as a better dog than she was (and myself as a better trainer than I am), I've always opted to lay it all on the line on this blog. I've tried to avoid making excuses for her behavior. I've uploaded videos largely unedited. I've talked about some of the dumb mistakes I've made. In short, what I've written on the blog is pretty much things as they are.

But recently, I discovered the luxury of a lie.

No, not online. In real life. You see, Maisy and I were out for a walk around the neighborhood. When we are out, the vast majority of the time I will say no if anyone asks to pet her. If someone tries without asking, I use body blocks to prevent them from getting close. But one of the things that has always confounded me is how to respond to the question, “Does your dog bite?”

 Not biting, but definitely not comfortable, either.

I quickly learned that this is apparently how children in my neighborhood ask for permission to pet a dog, so even though the answer is technically no- at least if you are looking at the past to predict the future- I've found that actually answering in the negative isn't good enough. Kids are fast, and she's come close to biting when I haven't been able to add “but you can't touch her anyway” quick enough. Which is why when the question came up last week... I lied.

The child in question stopped dead in his tracks, and then started backing away. When we were later approached by an 18 month old, I fibbed again, telling the toddler's mom that her child couldn't pet my dog because she bites. The mom thanked me for keeping her baby safe, and continued on their way.

Sure, this departure from stark honesty was a bit weird, but it was also kind of awesome. It was so easy, and I didn't find myself making excuses and giving lengthy explanations for why they couldn't pet my dog. My lie was readily accepted, and incredibly understandable. Some dogs bite, and you shouldn't approach the ones that do. By giving Maisy this really horrible label, I relieved us both of a lot of discomfort.

So while I can't say that I find lying comfortable, exactly, I do find it somehow luxurious.

Thursday, November 10, 2011

Patricia McConnell Seminar: Behaviors with a Genetic Influence

The Labrador’s desire to retrieve. The Great Pyrenees and his devotion to his flock. The Border Collie’s infamous eye. There is no doubt that each breed of dog shares more than physical similarities: they also share behavioral tendencies, a fact which clearly demonstrates that a dog’s genetics contributes to the way he acts.

But beyond breed-related predispositions, what other behaviors can be inherited? Patricia identified five, although she freely admitted that two of them are based on personal speculation alone. The other three have some science that show they tend to be pretty stable over time.

The first, and possibly the most researched, is shyness. Shyness is not the same as docility. It has nothing to do with submission. And it doesn’t really tell you how the dog will act. Shyness, scientifically speaking, has to do with fear of the unfamiliar.

This behavioral trait is actually a continuum, with shyness at one end and boldness at the other. It is influenced by the level of cortisol, the HPA axis, and the activity of the amygdala. A study by Goldsmith and Lemery demonstrated that it is surprisingly stable through an individual’s life. They discovered a correlation between a child’s cortisol baseline and his mother’s, and found that the baseline level taken one and a half years before a child started school could predict a teacher’s evaluation of inhibition at age seven.

In other words, shyness is strongly linked to genes, and is incredibly easy to pass on. This makes sense from an evolutionary standpoint: the child (or monkey or rat or cat- all have been studied) who runs from something new and unfamiliar stands a better chance of surviving than the one who boldly investigates strange and potentially dangerous things. It also makes sense then that shyness is expressed early in an individual’s development. Patricia shared that Margaret Seary Young found it was the only trait reliably predicted on puppy tests.

Reactivity is “mediated by physiology,” Patricia told us, and it is therefore logical that it would be influenced by genetics. Reactivity here does not refer to the bark-growl-lunge type of behavior problem that we dog people usually define it as. In this case, it simply has to do with how quickly and how much a dog responds to its environment.

Reactivity can be desirable in certain contexts- a herding dog that doesn’t have a short reaction time probably won’t be very good at his job. On the other hand, there are times where you need a “bomb-proof” dog who doesn’t really notice, much less respond to, what’s going on around him.

It’s also important to know that reactivity is separate from the shy/bold continuum. A very bold dog might notice and respond quickly to his environment, although he will probably do it in very different ways than the shy dog does.

Another behavioral trait that seems to have a genetic influence is frustration tolerance because it is mediated, in part, by the amygdala. However, there also appears to be a strong environmental component to frustration tolerance as well. Who can’t relate to being more irritable when tired, hungry, or in pain?

A dog who is having difficulty tolerating frustration is more likely to act out aggressively. Interestingly, aggressive dogs typically show lower amounts of serotonin and higher concentrations of cortisol, which also suggests there's a link to genes.

The last two behaviors are the ones that don’t (yet) have any scientific research to back up: predisposition to use mouth and status seeking. Both of these traits are things that Patricia has observed enough to believe they are genetically inherited. For the first, she says it just makes sense. Australian Cattle Dogs, for example, would need to use their mouths in order to herd cows. As for status seeking, Patricia said there seem to be puppies that are interested in controlling resources at a very early age… but more on that soon.

It’s clear that there are a number of behavioral traits that have at least some genetic influence. They go beyond just breed-related tendencies, and help explain why two dogs of the same breed can act quite different from one another. Of course, we already know that the environment is an important factor, too. In my next entry on the seminar, I’ll tell you about some of those factors, including in utero experiences, early stimulation, and socialization.

If You Want to Know More

Thursday, September 29, 2011

Good Dogs Bite, Too: Why You Need to Understand the Bite Threshold Model

There is a strange belief in our culture that says only bad dogs bite. Of course, most people believe that their dogs are “good,” and therefore, that must mean that their dog won't bite. While I really do believe that most dogs are good, I also believe that all dogs are capable of biting. It's just that it takes a lot to push most dogs to the point where they might bite.

In her book The Culture Clash, author Jean Donaldson introduces something called the Bite Threshold Model to help explain why a “good dog” might bite. This model states that each dog has a threshold at which he will bite. It looks something like this:

 Each line indicates how much stress a dog can endure before he displays silent stress signals (like freezing, licking his lips, tucking his tail, etc.), before he growls, before he snaps, and ultimately, before he bites. Of course, each dog is different, so the lines on each dog's graph will be at a different height. For example, as a reactive dog, Maisy's growl threshold is pretty low in general, and especially if we were to compare her to a more stable dog. Interestingly, Maisy's snap threshold is quite high (it takes a lot of stress before she will snap at someone), and while I've drawn a line for where I think Maisy's bite threshold might be, I honestly don't know where it actually is since she's never bitten anyone.

Donaldson also says that each dog has “risk factors” that will cause the dog to feel uncomfortable or stressed. These risk factors, taken individually, may or may not cause the dog to display any symptoms. The so-called “good dogs” will usually have risk factors that are quite low- they may not even reach the first line. Others do, but whether the owner notices that their dog is feeling uncomfortable is another matter. The symptoms are so subtle that they are often easy to miss. Here's Maisy's graph, with some of her risk factors added:

As you can see, while crowds of strangers might make her feel uncomfortable, she probably won't show any signs to indicate that. Meanwhile, she will definitely display stress if her head is touched, and the presence of children pushes her right up against her growl threshold- she doesn't always growl at them, but she might.

Most dogs- like most people- don't really want to hurt others. But given the right situation, any dog- and any person- is capable of defending himself or his loved ones. That situation happens when multiple “risk factors” converge into one single incident.

This recently happened with Maisy. Although she's quick to display stress, and even quick to growl, she very rarely snaps. Still, it happens when her triggers “stack” into one unfortunate situation. In this case, I had taken her to a group gathering. What I didn't know was that she wasn't feeling so hot (she had a bit of an ear infection starting), nor did I know that there would be a child there. So when the little one reached out to pet Maisy's head...

Yup, she snapped at the little girl. It all happened so fast that I didn't get a chance to stop the child that had approached. I felt horrible, of course. I'm always sad when I can't protect Maisy, and I hate that others saw her as a “bad dog” that night. I also want to be a good dog owner and keep others safe, and while the child (and her parents) weren't upset by the incident, I felt bad that the girl had a bad experience with my dog.

It's important to note that while the graph presents a logical, orderly progression of behaviors, that's not always the way things play out in real life. Although Maisy did stiffen briefly as the child reached for her, she did not growl. There wasn't time; the triggers stacked too quickly. Behavior also isn't linear. Our dogs are individuals, and so is the way they respond. Not only are each of their thresholds at different levels, but sometimes they will be missing a threshold entirely. For example, people sometimes punish growling, which can result in the loss of that particular line. That means that a dog could go from freezing slightly to biting without ever growling- the so-called bite without provocation.

Perhaps Maisy isn't the best example- although she's never bitten anyone, I'm not entirely sure that others would call her a “good dog.” (I, of course, think she's amazing.) The point remains, though: a series of relatively small things can stack up to the point that even the best of dogs will bite. In fact, sometimes I think these “good dogs” are the most dangerous. Because Maisy has been “bad” so frequently, I have a pretty good idea where her thresholds are, and so I can pretty accurately predict when she's more likely to snap or bite. People with “good dogs” don't have this advantage, and if and when things stack up in just the right way, they will be surprised by their dog's behavior.

If you have a good dog, I urge you to think about situations where your dog's behavior has surprised you. Think about how high each of his thresholds might be, and what types of things are likely to push him to each one. Do thunderstorms unnerve him? What about someone reaching for his rawhide or food bowl? How does he feel about children, other dogs, or men in hats? Pay attention to the times he stiffens up, freezes, tucks his tail, ducks his head, or licks his lips. These are all signs that he is feeling uncomfortable, and that situation should be put on your graph.

I hope that your dog never encounters a situation where all of those risk factors pile up into one big, scary stack, but if he does, the bite threshold model will help you understand why your good dog ended up biting. If you want to avoid such an incident- and who wouldn't?- I encourage you to be proactive. Being aware of your dog's stressors is a great start. If you see things beginning to stack,  avoid a possible incident by simply putting your dog somewhere safe, like in a crate or another room.

More ambitious dog owners might consult with an experienced dog trainer or undertake a counter-conditioning program in order to help reduce each stressor. If you lower the height of each risk factor, then when they begin to stack, the overall effect will be lower as well. Perhaps the dog will only snap instead of bite. And while a snap is still scary and something I take seriously, it is far preferable to having your dog bite.

So don't believe the cultural lie that good dogs don't bite. As the bite threshold model demonstrates, it's not bad dogs that bite, it's stressed ones... and good dogs get stressed, too.

Thursday, November 18, 2010

Ian Dunbar Seminar: Aggression

Ian Dunbar does not like to call a dog aggressive. As a label, he doesn’t find it very useful, and moreover, he finds it unfair. I think he has a good point: people tend to say that any dog that bites is aggressive, even if the dog bites only once during its life, and even if it was the result of extreme circumstances. Part of the reason people are so quick to label dogs aggressive is because bites are so rare- comparatively speaking, more children are killed every year by their own parents than by dogs.

Instead of asking, “is this dog aggressive?” Ian thinks we should ask, “is this dog dangerous?” He points out that simply having a bite history does not mean that a dog is dangerous. Dogs bite for many reasons, and the damage they do varies widely. In fact, Ian uses the damage done as the ultimate indicator of whether a dog is safe or dangerous. After all, every dog has the potential to bite, and until he does, you’ll have no way of telling how dangerous the dog might someday be.

In order to help determine if a dog is dangerous, Ian created a bite scale. This objectively analyzes a dog-to-human biting incident based on injuries sustained.

Level 1: The dog growls, snaps or lunges at a person. The teeth never touch skin.
Level 2: While the dog’s teeth make contact with skin, there are no punctures. There may be some indents or bruising.
Level 3: There is a single bite that punctures the skin no more than half the length of the dog’s canine tooth. Typically the entry wounds are circular or teardrop shaped. If there are slashes, they only occur in one direction because the person pulled away, not because the dog shook his head. Bruising is expected.
Level 4: There is a single bite that punctures the skin more than half the length of the dog’s canine tooth. The dog bit down and held, or shook his head. Slashes occur in both directions and bruising is significant.
Level 5: Multiple bites.
Level 6: The dog consumed flesh or killed the victim.

Ian says that the vast majority of bites happen at level 1 or 2. These dogs have excellent bite inhibition, and are not dangerous. However, these dogs do have a problem, and the problem must be solved as soon as possible to prevent someone from becoming injured.

Dogs that inflict a level 3 bite are probably dangerous, and people working with these dogs should be very careful to ensure they have the expertise needed to treat them.

Level 4 biters should be treated like a loaded gun. There needs to be fail safes in place to prevent accidental exposure to people. They should not leave the house expect to go to the vet, and then they should be muzzled. They need to be locked up when people are over. Ian will not work with level 4 cases. Although it may be possible to help these dogs, he has found that it is too difficult to get owner compliance. People simply do not do the level of management needed to keep the dogs from biting again.

Ian recommends that level 5 and 6 dogs be instantly euthanized.

Astute readers will connect this information with my previous seminar post on socialization and bite inhibition. Without a doubt, Ian used the information on aggression to underscore the importance of both socialization and bite inhibition. Obviously, a well-socialized dog is less likely to bite in the first place, but it is impossible to socialize a puppy to every possible scenario. Teaching our puppies good bite inhibition is the back-up plan. It’s what keeps people safe when socialization fails.

Treating an aggressive dog is not easy work. Ian says that it’s on par with sticking your finger in a dike that’s leaking. It works, but it’s not pretty, and it will never be as good as if the dog had been socialized properly in the first place. Ian discussed three methods for treatment.

First, there’s the obvious stand-by of classical counter-conditioning. I’ve written about this before, so I won’t spend time on it now. However, Ian did say that counter-conditioning should never stop. If you have a dog with a bite history, you should always have a handful of treats in your pocket when you’re out, just in case.

Next, for dogs who bite when touched in certain areas, Ian recommends doing progressive desensitization. To do this, you start touching the dog far away from the problem area, and gradually move closer, pairing each subsequent touch with a tastier treat. If the dog shows and signs of discomfort, start over, both with where you touch, and with lower-value treats. Soon, your dog should want you to move closer to the problem area because it means he gets yummier rewards.

Finally, for dogs who won’t let you near them, he recommended a method called Retreat and Treat. That article has the full details, but basically, this is where you throw kibble over the dog’s head, behind him, so that he retreats away from you. Then, as you move away, drop some liver or other high value reward. The dog will likely come close to you to get the liver, and then you start the cycle over again by tossing kibble over his head. Again, the ultimate goal is for the dog to want you nearby.

Thankfully, Ian acknowledged that this was just scratching the surface of how to treat aggressive dogs. He said he’d need another three days to do the subject justice. Still, I was glad that he spent the time to give us a bit of detail.