Knock knock. Who's there? Canoe.

Canoe who? Canoe let me in, it's freezing out here!

Knock knock. Who's there? Existential Crisis.

Existential Crisis who? I'm not really sure, because the concept of identity and self is fleeting and meaningless in an infinite universe.

Knock knock. Who's there? Orange

who? You know what, I just realized I forgot the rest of the joke. Can I get back to you?

Knock knock. Who's there? Fig.

Fig who? Fig-ure it out yourself, I'm busy!