Sam was sitting in the living room laughing hysterically at presumably nothing. (He does this frequently – He has something going through his mind that he finds hilarious)

Sam then came to me and said: Do you know what is really funny?

Me: What?

Sam: A beaver with a chainsaw.

Me: What would a beaver do with a chainsaw.

Sam: Chop down random trees and people and a squirrel.

Me: Why would he chop down people and a squirrel.

Sam: Because beavers don’t know how to use chainsaws. (Then he walked off laughing)