When I told the Fool I was going to this goofy Naughty Knitting Night, he said, "What are you going to knit?"
I had no idea, so I said, joking, "I'm going to make you an argyle willie warmer."
"You are?" he said. "Are you sure you can get that done in one night?"
"You've got a healthy opinion of yourself, don't you?" I asked.
"I mean," he said, flustered, "Argyle is intarsia and that takes a long time!"
I tried this story on a Muggle, and he just looked at me blankly and said, "What's the punchline?"