ROFL at this thread!!!
I'm pretty shy about the whole thing but have learned that when nature calls, you gotta answer.
My college boyfriend went to Columbia U. and lived in a co-ed dorm. With co-ed bathrooms!!! Now, to you freethinking Ivy Leaguers out there I'm sure this is no big deal. But I just about died when I was in a stall doing my business and I heard two of my boyfriend's fraternity brothers come in and take the stalls on either side of me and....well, do their thing.
I finished up as fast as I could and fled (first pausing to wash my hands, of course!
) so that they wouldn't emerge from their stalls knowing I was there!