Knock knock. Who's there? Dough.

Dough who? Dough-n't worry, I knead to come in.

Knock knock. Who's there? Don't ask.

Don't ask who? Exactly.

Knock knock. Who's there? A man with a

manuscript for a knock-knock joke, but he's struggling to come up with a decent punchline, and honestly, it's just getting a bit meta at this point.

Knock knock. Who's there? Waiter.

Waiter who? Waiter minute, I thought *I* was supposed to be asking who's there!