Knock-Knock Jokes Redux

We've had a lot more fun with knock-knock jokes lately.  I taught Vinny some pretty hilarious* jokes, including:
A: Knock knock!
B: Who's there?
A: Boo.
B: Boo who?
A: Don't cry, it's just a joke!

A: Knock knock!
B: Who's there?
A: Ach.
B: Ach Who?
A: Bless you!

A: Knock knock!
B: Who's there?
A: Anita.
B: Anita who?
A: Anita tissue! Achoo!

The entertainment value of that last joke has just been priceless.  When I first told Vinny that joke, he then responded with the following joke:
Vinny: Knock knock!
Me: Who's there?
Vinny: Roger.
Me: Roger who?
Vinny: Roger, I need a tissue!  Achoo!

I didn't understand the connection until I remembered that Anita and Roger are the dalmatian-owning couple in 101 Dalmatians, which then made the joke hilarious**.

This past weekend, I taught him the banana/orange knock-knock joke:
A: Knock knock!
B: Who's there?
A: Banana.
B: Banana who?
A: Knock knock!
B: Who's there?
A: Banana.
B: Banana who?
A: Knock knock!
B: Who's there?
A: Banana.
B: Banana who?
A: Knock knock!
B: Who's there?
A: Orange.
B: Orange who?
A: Orange you glad I didn't say banana again?

We have gotten tremendous mileage out of this joke too.  He was able to tell it to Daddy, who laughed heartily (as required).  But it has now hybridized with the "Anita" joke to become
V: Knock knock!
M: Who's there?
V: Banana.
M: Banana who?
V: Banana, I need a tissue!  Achoo!


* hilarious to a three-year-old, that is...
** even to a thirty-something