Siam Mon Jul 06, 2009 5:03 pm
I agree with the advice Giselle has given. A dog guards food because he fears you are going to steal it from him, by going and stealing it from him you are confirming every reason he guards and if anything his guarding should increase. Even if you give it back the time it was in your possession is time he could have had more food, dogs always do what works best. Keeping the food to himself gets him more food than giving it to you for a few seconds does, so he'll guard it. Plus taking something from a guarding dog is a good way to get bit. Domestic or not they have teeth and can bite, maim and kill people.
So a much safer way to go about it is what Giselle said. Stop focusing on only the behavior but focus on the mind set. Teach the dog you have no intention of stealing his food. That if anything, your approach to the food is BETTER than when you are not there. When you walk into the room during dinner time he gets loads of special treats. At some point when he does not react negatively to you entering the room walk past him and drop treats over and over so when you walk past him at mealtime it's a positive thing, he no longer expects you to take his food he expects more to come. You are changing what he thinks about your approach.
Much later kneel down and put treats in front of him (these need to be really good-better than what he is eating) so even your hands near him eating is a good thing for him. IF YOU THINK HE MIGHT BITE GET A PROFESSIONAL AND DON'T TAKE IT THIS FAR. Now much much later you can trade his regular food for something awesome (many dogs think green tripe is the greatest thing in the world) by taking his food and IMMEDIATELY putting down some of this awesome stuff and as he finishes giving his regular meal back. Again the dog is benefiting from you taking his food.
Never ever do something the dog is uncomfortable with. You should not be getting close enough to the dog for him to start to guard or else you'd be making your approach a negative experience and setting your training back. I also agree that backing away from the growling dog is rewarding the dog (but if you have gone too far it might be the best thing to do, you do not want to risk your safety) so never get close enough for that. And don't even get close enough for him to freeze or give the stare.
I also agree with on the side teaching a "drop it" command so that in emergencies you can get stuff back without getting bit. This should be started with something of low value (a less important toy that you give him) and not transferred to high value food until the dog is really and expert on lower valued stuff.
I also would personally get a professional behaviorist to help you, must has a point that none of us have seen this dog and we would not want to put you in danger. make sure you get a trainer who will not punish the dog for his aggressive responses as this will only suppress the behavior, not change his mind about people approaching the bowl, he will still want to aggress but he will be held back by the fear that he will be punished. That is all that may be keeping your dog from biting. not something I put a lot of faith in. That plus the dog will be punished for warning us, he is warning us he is going to bite and we want to rid him of his warning. how safe is that? Now you have a dog who still feels threatened by your approach to his bowl AND he is too afraid to tell you he is almost ready to take off your hand. GREAT. if pushed past the point where he's been punished (say he's been punished for staring, growling and snapping but say you push him past the point of a snap. he's never tried to bite and has therefore never been punished for doing that so in his books that is still a safe thing to do, he does not think it will be punished for biting.) He WILL bite and you'll have no idea it was coming.
In Jean Donaldson's book she outlines a dog's bite threshold well (she has pictures that make it even more clear). You might use punishment and get the dog to stop guarding. You can run up and grab his food and get no response. This is a dog who never tried to bite but had growled. Staring, freezing, puckering lips and growling were all punished. it appears that the owner can do nothing around his food to elicit a growl or any aggressive response. the owner of course thinks the dog is cured. Inside the dog sill wants to freeze, stare, pucker and growl but has been punished for it. he has no desire to snap or bite, his food aggression is not that severe.
This dog happens to be uncomfortable with loud noises (he's not too bad, a little pacing), small children (he has been known to freeze around them before moving away) and sudden movements (he has been known to growl when startled by the other dogs.) So say you are having a 4th of July party, some fire works have gone off and continue to every once in a while, you have a bunch of kids at your house running around, playing with sparklers and having fun. Someone has dropped a piece of food on the floor which your dog has bent down to eat and as he's licking what's left of it off the floor one of the small children running by him trips and falls beside him. Your dog bites him hard. Any of those factors by themselves would not have triggered a bite. even if the dog was punished for growling at any trigger in the past and for freezing with any trigger he has never snapped or bitten. Having food brought him up to the growling threshold (which he did not show because growling was punished), same for the kid suddenly tripping (he would never just bite for that, he would growl, but growling was punished for that too, the owner thought she had fixed that problem.) He would never just randomly bite kids, he had frozen up before but that was punished so the owner though he was fine. So the dog never reacted to these things by themselves because the amount of stress they caused him, caused reactions as high as growling and everything up through growling was punished. So the owner thinks the dog is now fine with these things due to her "training". However when a trigger that pushes the dog into his growling threshold was paired with another trigger that was past his growling threshold and a trigger past his freezing threshold plus the mild stress caused by fireworks he was pushed WAY past his bite threshold (this will not be the case with every dog, some dogs have very high bite thresholds, you'd have to put every single thing your dog is uncomfortable with in a big package and release it on the dog to elicit a bite. OR some dogs have very low growl threshold and a moderate bite threshold so even when the dog is growling he is no where near biting. Most dogs are not quite so easy going. It's mainly an individual temperament thing and a breed thing.)
So yes, you can punish a dog for his guarding behavior and have him stop guarding but in his head that trigger (you approaching his food)still brings him into his freezing and staring threshold even though he does not exhibit the behavior. If you do what Giselle and heather have said you actually change the dog's mind. You approaching his food is NO LONGER a trigger at all, in his head he has no desire to guard his food from you, you approaching his food does not bring him past his freeze threshold anymore. if the dog in the above situation had been trained with mind changing and not punishment all those other triggers might not have added up to a bite, maybe a snap or even something lower, like a growl (which he would not have exhibited due to the prior punishment).
That's my stance on it anyway. I recommend Jean Donaldson's book "mine!" a guide to resource guarding. I saw the bite threshold explained in her other book "The Culture Clash" but I believe she explains it in "Mine!" as well.