A few little gems from our family trip to Disneyland, brought to us all by my four year old sister Angela on the car trip down:

Angela: Knock Knock!
Kat: Who's there?
Angela: Dog!
Kat: Dog who?
Angela: EAT DOG!!!!!! Aaahhaahaahaahaa!

half an hour later, Angela still has a tenuous grasp on the art of comedy:

Kat: Hey Angela, what's brown and sticky?
Angela: Does it...Can you...does it stick to a child?

:::ba dum ching!:::: That's right, ladies and gentlemen, she'll be here all night...