knock

Knock knock.
Who's there?
Orange.
Orange who?
Orange you glad I didn't say banana again?
Knock knock.
Who's there?
Boo.
Boo who?
Don't cry, it's just a joke!
Knock knock.
Who's there?
Letuce.
Letuce who?
Letuce in, it's freezing out here!
Knock knock.
Who's there?
Yoda.
Yoda who?
Yoda one for me!
Knock knock.
Who's there?
Cows go.
Cows go who?
No silly, cows go moo!