My favorite village idiot joke goes – please stop me if you have heard this one – this way. Once upon a time, in a particular village, when offered a choice between a dime and a nickel, the village idiot would invariably grin and pick up the nickel and everyone would have a hearty laugh at the stupidity of the village idiot.
One day, a kind-hearted guy says to the village idiot, “You know, although a nickel is larger than a dime, it is only worth half a dime. You should pick up the dime.” The idiot says, “I know that. But if I pick up the dime, people would stop offering me the choice between taking a nickel or a dime, wouldn’t they? Who would be that stupid?”