This is our third Basenji. Prince Tut is 6 years old. About 3 years ago, he decided to become very protective of us. When people come into our home, he nips/bites them. The other night we had guests for dinner and he broke skin on one person and nipped another. We would so like to know how to break him of this habit. Does anyone have ANY ideas?? Otherwise, he is a very lovable dog. Thanks much.