Where Do They Come Up With This Stuff?

The other day I was talking to Mason. We were laughing and joking, when all of the sudden he got so serious. He looked at me and said, "Mom, do you know that it's dark inside our bodies?" I told him that I did know that, to which he said, "That means if someone broke my head off and then put it on upside down, I wouldn't be able to see because it would be too dark!" He wasn't very happy when I started laughing uncontrollably, but I couldn't help it!