"Friend Jacen, you may tell me a joke, but I'm sure I shall not laugh."
"You just keep telling yourself that," you say grinning. "Okay, what do you call a crystal snake's parents?"
"I do not understand, Friend Jacen, are they not also crystal snakes?"
"Well, yah, but they're also transparents!"
"Ah, aha," she sais.
What do you do?