This is another one of those "strange things" that happen to me in the bathroom. This is not so much a story as just an event in my life. It just goes to show you that you don't know what to expect at any given moment.
I was living in Tampa at the time, working for GTE. I visited the men's room after class, and took the opportunity to plop down in the end stall for a relatively leisurely bowel movement. I had been there a while when I realize there was someone in the next stall. I really hadn't noticed that there was anyone else there when I sat down, maybe he came in after I did … as may be I notice him when he stood up. He accidentally dropped his pants, I assume. He was a little distressed by that slip, because he muttered a heartfelt "shit!" that made me look that direction. I think he was less upset at my seeing that he had fumbled his pants, than at my seeing his pink underwear. His lacy, elaborately frilly, pink underwear. He snatched them and his pants up and left expeditiously.
I saw him through the crack in the door as he exited. He was one of the denizens of my floor, a small, middle-aged, guy of perhaps fifty with a bald head and a fringe of white hair. I never told on him though I related the story often enough without giving him away.