Knock knock. Who's there? Ego.

Ego who? Eggoing to let me in, or is that just a waffle excuse?

Knock knock. Who's there? Repeat.

Repeat who? *sigh* Fine. Knock knock.

Knock knock. Who's there? Maple.

Maple who? Maple syrup to talk to someone, I'm feeling a little drained.

Knock knock. Who's there? Cereal

Cereal who? Cereal-ly good at making bad jokes, it's a grain of truth!