Boo bumps you with his butt when he wants you to play with him. He did this to Gracie Ruth when we got her. It was hysterical because Boo's 10 lbs and G was 2 lbs and he'd bump her, very gently, but she'd still fall over. He'd turn around, see her on the floor and would have a look like, "Why are you laying down? Get up! Let's play!" He'll also hike his leg and walk around your leg, like a cat would when they rub against you. The first few times he did this it freaked me out, I thought he was going to pee on me. But it quickly became obvious it was part of his invitation to play routine.
Boo's got G doing the butt bump now too. They are both working on training Yogi, but he just views it as a prime opportunity to bite an unprotected butt!
Little stinker!!
