[Chip's Mom]

I agree with Jessica. It sounds like he has alot of unused energy. How many hours during the day is he in his crate? Does he have a fenced yard to run in or do you take him for long walks each day. I have taught Chip to play fetch and I throw the toy and he runs after it and brings it back to me. That helps get rid of unused exercise and keeps something in his mouth so he can't bite. Another suggestion is get him interested in a toy and when he has it in his mouth, romp with him some and let him chase you while the toy is in his mouth. If his mouth is full, he can't nip and you are giving him the attention he wants.