Knock Knock

My kids love to tell jokes.  Or rather, make their own jokes up.  They usually aren't very good, but we laugh anyways.  ::sheepish smile::

Last night, Ciara wanted to play too.  From the back seat of the car I hear this little quack.  And the quack starts getting angry at the lack of response.  At first I didn't understand...as usual.  Finally, it dawned on me and Ciara told her first joke.  Here it is for you.

Kwawk kwawk
Who's there?
CiCi!
CiCi who?
CHICKEN!