This, I get! I'm pretty comfortable with pro by now, so don't have an issue with the arm-around-waist position at comps, but there is a social dancer who likes to put his arm around my waist and pull me in when another couple comes too close during a class or a social, or when we get too close to the wall. I know that he's trying to "protect" me (thanks, brain!), but it still makes me really uncomfortable. I'd really rather just get bumped into... or better yet, led into a change of direction to avoid the collision.