So my wife takes Cooper to the trainer and when she brings him back home he is perfect. They walk in and Copper heals perfectly in stride next to her. She takes him off the leash and while she is doing that he holds his left front leg up like a showdog. Then she shows off all these commands that he performs beyond perfect. He sits, he lies down, he poses for pictures, he does it all. I am usually working at my desk in the family room when she motions to him that he can go and of course he sees me. You know those zombie movies where the animal looks totally crazy, with fangs and claws projecting forward. Well he runs up to me gets on his hind legs and stands up to me, takes his paws and wraps them around my arm and gnaws on my hand. He then growls at me and runs away and brings a ball to throw, and barks very loudly until I throw the ball. If I don’t throw it he grabs my hand with his teeth again. So then I throw the ball over and over again. This goes on for while until my wife calls him. Then he prances over to her and holds up one foot and acts perfect again.