Alvin Jr: Dad, knock knock.
Slade: Who's there?
Alvin Jr: Boo
Slade: Boo who?
Alvin Jr: Don't cry, it was only a knock knock joke. *chuckles and smiles innocently*
Alvin Jr: Dad, knock knock.
Slade: Who's there?
Alvin Jr: Boo
Slade: Boo who?
Alvin Jr: Don't cry, it was only a knock knock joke. *chuckles and smiles innocently*