Well, it is water-proof...

Claire and I were out for a while. Came home and shortly thereafter noticed (by the smell) that Gavin had a dirty diaper. I said that the poop was on Shane's watch and therefore he should change the diaper. Shane retorted that no, it was on my watch. And then I won by saying no, the poop was definitely on his watch. (We are very mature) Claire came over and asked if she could see. She was wondering if Daddy's watch was in the diaper or what.