This morning I over heard James and Will talking while I was getting ready for church.

Will: Daddy, Why do we have belly buttons?
James: Weeelllll (and a long pause)
James: When you are in Mommy's belly, you have a tube. And when you come out, the Dr. blows into the tube to blow you up. And your belly button is where he ties a knot in it so you don't go "Pbbbtttttt" around the room and go flat!

I yelled out "NO!" at that point, while Will was laughing at the "PBbbtttt" sound. I said "That's not true, Daddy's being silly."

Will said "Yeah Daddy, if the tube comes untied you turn into dust!"