Who's there?
Major.
Major
who?
Major laugh.
Who's there?
Diploma.
Diploma
who?
Diploma is here to fix the sink!
Who's there?
Cook.
Cook
who?
Hey! Who are you calling cuckoo?
Who's there?
Doorbell Repairman.
Doorbell Repairman
who?
Ding Dong! My work is done here.
Who's there?
Police.
Police
who?
Police hurry, I'm freezing out here!
Who's there?
Doctor.
Doctor
who?
You've seen that TV show too?
Who's there?
Usher.
Usher
who?
Usher wish you would let me in!
Who's there?
Nun.
Nun
who?
Nun of your business!
Who's there?
Impatient Pirate.
Impatient Pirate
wh-
ARRRRRRRR!
Who's there?
Police
Police
who?
Police, can I stop telling knock knock jokes!

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