Our How We Staged Shakespeare series ends with the celebrated actor explaining why he keeps coming back to the much-misunderstood role of Shylock in The Merchant of VeniceThe Merchant of Venice and I go back a long way. I first encountered it at school, at the age of 12. Our English teacher, Cecil Worman, handed out copies of the play and told us to turn to act four, scene one. The trial scene. He said: "Stewart, you…