Rebecca loved to do puzzles while she was in the bathroom. Any pieces she wound up
not using, she just left on the floor in hopes that when she did another puzzle later
the extra pieces would fit in somewhere. After a couple years, she ended up with enough
pieces for a bonus puzzle – one for which she didn't have a boxtop guide to assist her.
I've been hanging around Syncronicity of Indeterminacy too long; that sounds like one of his stories...