Julia: Knock knock
Mama: Who's there?
Julia: Banana:
Mama: Banana who?
Julia: Knock knock
Mama: Who's there?
Julia: Banana:
Mama: Banana who?
Julia: Knock knock
Mama: Who's there?
Julia: Banana:
Mama: Banana who?
Julia: Knock knock
Mama: Who's there?
Julia: Banana:
Mama: Banana who?
repeat 7 more times:
Julia: Knock knock
Mama: Who's there?
Julia: Orange
Mama: Orange who?
Julia: Orange you glad I didn't say banana again?
Belly laugh here