As I've mentioned before Spud is almost 4. His favourite new thing is to come up with jokes. Here's today's offering, which I think is pretty good (and makes much more sense than most of them).*
Spud: Knock, knock.
Me: Who's there?
Spud: Door closed. That's why I knocked! Ahahahahahah! That's a JOKE!
* I'm his mother so I'm quite biased. Also, I can't remember how to tell a joke to save my life so any joke is a good one.