If he means that much to you, I would consider a trainer. I've heard about trainers that have helped people work wonders with just a few tips but the job is mostly on your part to follow the recommendations. If it were me, I would be afraid to rehome him if I hadn't tried to correct that biting behavior. I wouldn't want him to hurt someone else either.
Trainers don't have to be expensive. Check with your local kennel club. I'm sure they'll have a good recommendation for you. |