Ok, why do dogs do this? Its when they slide their butt across the ground. Does it really mean anything? Osa did it last night when we got home from a walk on the hardwood floor. She did it a couple of times so we took her back outside thinking she had to poo. Well, she didn't and didn't do the slide again. She has done this a couple of time in the past. When I see it all that I can think about is that one commercial for a carpet cleaner (I think) where the kid is watching the dog do it and is laughing and the mom walks in and screams.