A one-man show can mean anything from a reading of MR James ghost stories, through a biopic of Mata Hari to the wondrous spectaculars of Derren Brown. Subjects. Someone has proved that, from his behaviour in the Old Testament, God is gay, bi-polar and addicted to bric-a-brac. There have been one-man Beowulf 's, Tom Jones's and Under Milk Woods . Monologues on Lully's conducting accident, Beethoven's chamber pot spillage and 'I was Benjamin Britten's First Mr Squirrel'. Historical re-enactments by one of the Stonehenge masons, of Michelangelo winch-hanging under the Sistine Chapel ceiling and the unmaking of Tracy Emin's bed. Audiences have been encouraged to play Twenty Questions, Clumps and Analogies to guess the identities of Bathsheba, Moll Flanders and Miss Marple. Mark Anthony, Van Gogh and Liberace. The Mad Hatter, Shivah and Hitler. So how to decide on yours. There are, give or take, two w...