Knock knock. Who's there? Documentation.

who? This joke is still in beta and the punchline has not been implemented yet. Please try again later.

Knock knock. Who's there? Homer.

Homer who? Homer-ly, who could resist a classic like this? It's an *epic* pun, don't you think?

Knock knock. Who's there? Repeat.

Repeat who? *sigh* Fine. Knock knock.

Knock knock. Who's there? Grape.

Grape who? Grape to meet you, I've heard a lot about you!