> The best way to deal with it is to teach the dog to move away from food ect on command so that you can control his ablity to be near an object instead of the other way round.
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The only reason a dog guards food/object is becasue it fears loosing the food/object. If you teach the dog it has nothing to fear, it will have no REASON to guard. POSITIVE ASSOCIATION can be used to teach ANY behaviour, even to teach a dog that other animals around food are GOOD & that the dog STILL gets the food so has nothing to worry about.
I couldn't wacth much of the video, I think it's sick. Training is about TEACHING - a good teacher explains things CLEARY, they do not need to raise thier voice in order to be 'assertive' over the dog. That poor caged dog, that was allready in a state about the food was being shouted at - this says nothing about the dog and tonnes about the trainer - the trainer is lazy and a bully.
My dog met his best buddy on his walk today, they love each other to bits and get rather excited about each other, they are both entire males - one a Rottie, the other an English Mastiff. I took a piece of cooked chiken from my pocket (Rottie smelt I had something tasty, sat down nicely, and I just couldn't resist his cute, smiley face :) ).... My dog knows the drill - if I give food (even high-value food) to any other animal, if he waits nicely he gets some next, so as he saw me feeding the Rottie some roast chicken, he sat down and waited patiently for his bit.
I have never had to raise my voice at him, cage him or zap him, I have used the GIVING of food to teach him that pateince, good manners & attention on me gets him the good stuff. He is very food motivated, to the point of barging me out of the way to steal food off the kitchen counter when younger, but a little bit of patience, & lots of well-timed tasty food and he now knows that all he has to do is sit calmly.
My dog will happily sit next to my tiny litle cat, I can give the cat chicken and he will not try to steal from her as he knows if he waits his turn he will get his next.
Just to make sure I've got my waffling message across - the GIVING of FOOD works wonders = the lesson seeps right in and the dog actualy WANTS to do what you are teaching it to. The biggest problem anybody has with any dogs beahiour is when they try to STOP the dog doing what it WANTS - dogs don't try thier hardest to do things they dont want to do, so if you harness what they WANT, REWARD them with what they WANT you then have a dog that WANTS to do what YOU want it to do, in a way you want it to do it...........Even if you put the dogs mental welfare aside, why would anybody choose to ignore the most powerfull thing there is to teach a dog - rewarding it with what it wants????
A dog that guards food, fears loosing it's food/ it wants food = use food to teach it it has nothing to fear from you when it has food - seems simple to me..........
A final thought, you rightly make the analogy between high value food and higher value money - why would anybody use an entire bowl of food and a bone to start training a dog that is food aggresive?????? Wouldn't starting with a low-value item be the most obvious choice to start with? Just another example of setting the dog up for failure (or making the 'trianer' look like they work wonders) :(