Knock Knock
Who's there?
Diploma!
Diploma who?
Diploma to fix the leak!

Knock Knock
Who's there?
Disaster!
Disaster who?
Disaster be my lucky day!

Knock Knock
Who's there?
Disguise!
Disguise who?
Disguise the limit!

Knock Knock
Who's there?
Dishes!
Dishes who?
Dishes a very bad joke!

Knock Knock
Who's there?
Disk!
Disk who?
Disk is recorded message, please leave your message after the beep!