Well Mack is cool with sharing his food with me, but as soon as I give him a treat that he loves its on. Like a bone or expecially a pig ear or something, he will actually try and bite me and is really showing aggression. Teeth showing, nasty growling and biting. But not succesfully, he is to slow. I take it away and he is cool. So whats the solution? Obedience classes are not an option at this point.