JustWait (or Loogy or Froggy, or Lu-suer, your choice) is sitting on the
toilet. His wife thinks he has been in there too long, so she goes in to
see what's up. Our boy is sitting on the toilet reading a comic book.
But about every 10 seconds or so, he puts the comic down, grips onto to
the toilet seat with his left hand and hits himself on top of the head
with his right hand.

His wife says, "Are you all right? You've been in here for a while."

Our boy says, "I'm fine, I just haven't gone 'doody' yet."

His wife says, "Okay, you can stay here a few more minutes. But, honey,
why are you hitting yourself on the head?"

Our boy says, "Works for ketchup."