Interview: Tim Cooper, the hippo artist

Tim Cooper explains his defining hobby: he draws only right-facing hippos, and puts one on every envelope, bill, and Christmas card he sends. His brother, a schoolteacher in England, started a running joke with his students that a hippo is loose in the school, using Tim's drawings. The hosts close the interview by rating the night's show an 'apathetic lemur' on their scale from a one ('drunk hippo') to a five ('tenacious panda bear').