Yup. Then there's the ones who decide the next morning that they probably SHOULDN'T have done it.
And there's a VERY fine line between "Probably shouldn't have done it" and "Didn't REALLY want to do it."
Actually, I'm talking about the ones who say "no" when they actually do mean "yes" and get all weirded out when the guy disengages after she says "no." What the hell is the deal with that?