Stomper is a boy. He is snappy, but not with other dogs. It drives me crazy. He has been extremely socialized from 8 weeks old on. Very comfortable and loving to all people. He is only playing when he snaps at us, but he is 8 months old and should not be doing this at all. We are extremely consistent and tell him NO and ignore him. It has not helped. I believe it is totally the personality.... Males probably tend to be a little more snappy because the are MALES. Hello!!!! Just kidding!