Knock Knock Jokes

[Honey Pie]

Does anyone have any good knock knock jokes? I only made this thread because I wanted to share this one.

Knock knock.

Who's there?

To.

To who?

No no no, to WHOM.

 

[Cel-Shaded Deku]

Knock knock.
Who's there?
Pee catch.
Pee catch who?
Pikachu, I choose you!

 

[Justeazy]

Just to participate, I'll make up a bad one real quick.

Knock Knock
Who's there?
Who.
Who who?
This is Harry Potter; I was just making sure I had found the owlery.

Bad joke aside, I liked the two above.