Potty Humor

The other day while I was in the bathroom, Will stuck his head in the door and asked if I needed some privacy.  I told him yes so he closed the door again.  Then he stuck his head back in the door and said "call for me when you're done."  So I said I would and he closed the door.  Then he stuck his head back in the door again with a big smile on his face and said "but you have to wipe your own butt!" and started laughing!