I've been trying to teach William the fun of 'knock-knock' jokes. He is cracking us up! William is a very visual learner, you know, Tom & Jerry, the Jetsons, Wallace & Gromit... comedic things he can see. 'Knock-knock' jokes do not fit into that area. So this is how they have been going with him.
Me: "William, knock-knock"
William: "Little pig, little pig, let me in"
Me: "No, not 3 little pigs... it's a knock knock joke. I say, "Knock knock, and you say, "Who's there?""
Me: "Knock knock"
William: "knock knock"
Me: "No, you say "Who's there?"
William: "It's me, William Wallace Malone!"
I love this boy!