The scene, a Renaissance Faire. Two fellows dressed as monks are running a fish-and-chips stand. Some folks are giving them a little grief about whether or not fish-and-chips would be authentic provender during the period represented, but a ruling hadn't come down from on high yet, so they proceeded with business.
A fellow dressed as a jester thought he would have a bit of fun with them, so he asked the one at the counter, "I presume you are the fish friar?"
To which the reply came, "No, fool! I'm the chip monk!"