Maybe His Humor Is Just Too Sophisticated For The Rest Of Us

Max to Mama: Knock knock!
Mama: Who's there?
Max: Boo!
Mama: Boo who?
Max: Boo the door!
Mama: ???
Max: Say, 'boo the door, who', Mama!
Mama: Boo the door who?
Max: Don't cry, the door doesn't want to bonk you!
[PAUSE]
Max: Now laugh, Mama.