Demon. Gremlin. Poltergeist. Ghost. Phantom. Spirit. Shadow. Ghoul. Devil. People are afraid of them, so they relegate their existence to stories, volumes of books that can be closed and put on the shelf or left behind at a bed and breakfast; they clench their eyes shut, so they will see no evil. But trust me when I tell you that the zebra is real. Somewhere, the zebra is dancing.