Knock Knock
Who's there?
Plums!
Plums who?
Plums me that we'll always be friends!

Knock Knock
Who's there?
Police!
Police who?
Police open up the door!

Knock Knock
Who's there?
Possum!
Possum who?
Possum peace pipe!

Knock Knock
Who's there?
Prussia!
Prussia who?
Prussia cooker!

Knock Knock
Who's there?
Punch!
Punch who?
Not me - I just got here!