A Joke For Your Weekend

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.