Shelby was bitten by a vampire pixie. I think. It went like this.
All of a sudden I heard a shriek. Shelby was screaming "Something bit me! I was bitten! Someone bit me! You bit me!" At that point I had seen where she was bitten. I thought she had poked holes in her hand with a pencil. She thought that she was bitten by a leprechaun. Then I came up with the revelation of the vampire pixie. It all added up. There is no other possibility. It is the only explanation. Shelby was bitten by a vampire pixie. That or she was leaning on my zipper to my coat and it made a tooth pattern on her hand. But I don't think so.
Parker and Shelby.
Look out for vampire pixies. And leprechauns. And angry coat zippers.