I once fell asleep in one man's lap and woke up in another's. Not drunk, any of us... and all entirely innocent. Bloody confusing, though.
Then there was the time when I was fifteen that I fell asleep on the floor of a frat house a bunch of my friends were visiting (shockingly enough, again no drink involved. We were there to play the card game Magic. If you don't know, don't ask.) I wasn't playing, and it was three in the morning... but they forgot I was with them, and left me sleeping, jailbait, on the fraternity floor. Fortunately one of them remembered, came back, and woke me up, a move for which I will forgive him many things. I've since joined the fraternity just next door to that one, and they're harmless enough, but it didn't seem that way at fifteen, and I doubt the cops would have understood either.
Lots more, but why share all my embarrasing secrets?