Oh, now if it's a stranger that's a different story. Ugh! Really creepy.
I think every part of my body has been touched by strangers on the dance floor at one point or another. I think I have perfected my Ice Queen Bitch stare that can wilt a sequoia, and one gaze is usually all it takes. Of course, the drunks are somewhat immune to the stare, but that only makes it easier to touch them inappropriately with a knee or elbow.