A few years ago during a game in our local kids rec league, I looked over and the person keeping the book had vanished. I went over to the person working the scoreboard and asked what happened. He said, "Oh, she had to go to the bathroom." I asked him if she had asked him to keep the book also while she was gone and he said, "No, she seemed really in a rush."
While I was asking if anyone else would come down to the table, she returned. I actually thought I saw toilet paper sticking to her shoe, but I didn't pursue it.