Funny story. We had a team Christmas party last year. As part of a "get to know you" thing everyone emailed something about themselves to someone who put together a quiz. You go around, introduce yourself, and ask if the person is this or that (like bingo, each square had an interesting factoid).
One square said "My wife thinks my bike cost $500". No one could fill in that square. The guy who did the quiz sheepishly admitted that he made up a few questions as random "unfillable" squares.
Well, ends up the guy who belonged in that square was there (unexpectedly - apparently he said he couldn't make it) with his wife. Not only does she think that his bike cost $500, he carefully buys black bikes each year so she thinks it's still the same bike. Apparently he does a bike each year, sells the one he has, and apparently either she doesn't know or pretends she doesn't know.