Someone I knew at Uni, not really a mate, got up in the middle of the night while still hammered, opened the lid of his Hi Fi and pissed all over it. From then on, whenever he went out for the evening he put his raincoat over his Hi Fi.
I also did that a couple of times in my 20's when totally hammered. I woke up once and found myself standing in the corner of the bedroom about to piss in what, in my dreams, was a urinal! Alcohol-induced sleep does strange things to you when you have a full bladder