There is a book titled "The Mortified Man", written by a friend of mine who interviewed a person who was using a public out-house in a park in the countryside in Kansas. Somehow, the man's wallet fell out of his pocket into the receptacle, and as he was trying to reach the wallet, he fell in. He stayed there overnight, and was rescued the next day by park employees.
I know this is a true story, because it was written up in the local newspaper, but people involved in the rescue respected the man's privacy and did not reveal his name. My friend managed to track him down and, again respecting his privacy, interviewed him extensively and then wrote the book. Nobody knows who the poor fellow is or was.