If a vampire bites a zombie, the zombie doesn’t turn into a vampire, but the vampire turns into a lady named Susan Flagherty from Philadelphia. But if a zombie bites Mrs. Flaherty, she becomes a vampire and the zombie becomes a gentleman named Carl Leonard from Boston. If Mr. Leonard bites Mrs. Flagherty, both become a ping-pong ball. But if it is Mrs. Flagherty who bites Mr. Leonard, he turns into a zombie and she becomes a night table. This I know for sure.