x-posted at the new blog.
I don't know why, but every child must learn to tell a knock knock joke. I think that it must be a prerequisite for reading. This is Olivia's:
Mom: Say, "knock knock."
Liv: Knock knock.
Other family member: Who's there?
Liv: Radio not...
Mom: Wait! Say, "Radio."
Other family member: Radio who?
Liv: (30 seconds of silence)
Mom: (elevated eyebrows of encouragement)
Liv: Radio not! Here I come!
Everyone: (exaggerated giggling)