2 pm today, an hour past Bean-girl's naptime. Bean-girl is rubbing her eyes.
Me: I think you're tired.
Bean: I am not tired.
Me: Then why are you rubbing your eyes?
Bean: (momentarily at a loss). For... For fun!
A little bit later. All attempts to force a nap have been in vain. Bean is crying over some little thing, a sure sign of over-exhausted Bean.
Me: I really really think you're tired.
Bean: I am not tired!
Me: Then why are you crying?
Bean: For fun!