On the plus side, Lynn is brave (or old and therefore zero-f*ck-giving) enough to make jokes about dementia, incontinence and loneliness, issues that don’t just loom for political leaders and Whitehall mandarins, but which rarely get talked about on stage. And he knows how to write a set-up and a punchline. Levi-John and William Chubb, as Hacker’s nemesis from the college authorities, make the best of underwritten characters. Francis is a joy to watch. And Rhys Jones? I’m sorry, Prime Minister…