How old is he, and what are the problembehaviors? Some are caused by hormones and will be helped byneutering (which I recommend anyway). Examples would bespraying/marking, mounting your leg, defending his territory,etc. If he's young, he may have "baby behaviors," which are arabbit's version of being a naughty puppy or kitten. Forexample, he could dig your carpet up a lot. Others arelearned behaviors, because he figured out that if he does somethinghe'll get a reward or you'll respond in a certain way. Forexample, he may learn that nipping your ankle gets him attention.