Look at this line. ‘I’m 80 years old. I find that unforgivable.’ Could an actor get a laugh on ‘unforgivable’? Maureen Lipman does just that in Rose, by Martin Sherman, a monologue spoken by a Ukrainian Jew who lived through the horrors of the 20th century. In the opening sections, Lipman plays it like a professional comic and she fills the theatre with warm, loving laughter.