Knock, Knock...Who's There?

Wouldn't you know it, but my daughter Emma is hooked on these Knock, Knock jokes.

Here's a typical one:

Knock, Knock.
Who's There?
Banana.
Banana Who?
(this is where it gets...ummm...odd...like tonight, for example, on the way home for the lake): Banana with a steering wheel on it's head!
(this is followed by all sorts of giggles!).

On and on this goes in the van:
Banana Who? Banana sitting on a steering wheel!
Banana Who? Banana coming out of a steering wheel!

My family informs me that when I was Emma's age, I also told these kind of nonsense jokes.

I actually think Emma's jokes are funny...up to a point: like after the eighth version of bananas and steering wheels I had to try and introduce anything different for Emma to make a joke about. I finally had to tell here to stop with the knock knock jokes.

She agreed.

Then she smiled.

"Hey Dad...why did the banana cross the road?"