I do, often - what if, for example, Anne Boleyn had not miscarried her son when she witnessed Henry VIII falling from his horse that day in 1536...! And what if Charles had never returned from exile in 1660 to restore not only the monarchy but the theatres as well - would theatres even exist today? Hurrah for Charles II and for the patent he issued which enabled the Theatre Royal Drury Lane to be built in 1663. And it's still going strong - I wonder if Charles might have enjoyed a performance of 42nd Street?!