Kozbo has a tendency to bite if I try to do anything to him, like cut his nails, take a tic off or try to take something out of his mouth. He also is marking in the house, I bought one of those belly wraps but haven't tried to put it on him yet, I guess I don't want to be bit again . The marking indoors is the main reason I can't keep him, I can't take cleaning up after him anymore. When he wants he can be a very good dog. Likes to walk on a leash.