Would be in the training of food refusal. Any dog worth his snot needs to learn this. The only way we can train it, is remotely, via electric shock. Properly done, guy walks up to the fence, throws poison bacon over, dog even sniffs it, and keeper shocks the crap out of dog from inside the house. Dog learns that dude bearing bacon is a son of a bitch, starts to go of on man, becomes civil when dude throws bacon over the fence, perfect, but a pittiy is just too fucking hard and dumb to ever come to this conclusion, believe me I have tried.