I have a Jindo mix and his food-aggressiveness extends to spaces and toys too, as well as protecting people. He does not bite but growls viciously and will try to fight dogs, and last night he really went after our cat, who is his friend, over a space issue. Our dog knows that we don't approve of his behavior but does it anyway, as if he would control it if he could, but cannot. The best way we have figured out to handle this is to teach him commands and never try to physically move him off a bed etc. For example, we taught him "get down" with positive reinforcement, so now if we need him to move off furniture, we command him and he gets down. I would try teaching him "off" with less "charged" items and work your way up to his empty food bowl, and then to a bowl with food in it. Just reward him for doing the "trick" and don't scold or reach for him if he doesn't do it. Our dog responds best to hand-gestures and a finger snap, so a clicker would probably work. Words don't work as well. Never put your hands near his bowl without having him move off first. We also use the leash a lot to control his naughtiness, like going after the cat. We just put the leash on and he has sit or lie quietly nearby. Calms him right down. I hope this helps. Jindos aren't like other dogs and you have to work with their nature rather than trying to change it.
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