Knock knock. Who's there? Tell me.

Tell me who? No, *you're* supposed to tell *me* who's there. I'm the one who knocked, and now I'm waiting.

Knock knock. Who's there? Egg

Egg who? Egg-cuse me, I'm cracking under the pressure to make a good pun.

Knock knock. Who's there? An anticlimax.

An anticlimax who? Exactly.

Knock knock. Who's there? That's what I'm asking.

That's what I'm asking who? That's what I'm asking who wants to know who's on the other side of this door!