My wee boys used to nip people's ankles initially. They stopped once teething was over, I always scolded them, eventually they learned to curb their enthusiasm. I think it's a small dog trait, don't quote me, but from my experience with small dogs all of mine nipped when very young. As for protecting you, my boys don't see many people on a daily basis, we live rural, the racket they make when the mail lady arrives, would wake the dead! However one of my little boys runs away rather than greet any new person, his brother is much more brave, he goes to any one for a pat. They don't like anyone t