Watermill theatre, NewburyThe Private Eye duo adapt AG Macdonell's satire showing how a privileged chancer in English public life gets away with it It's a bad week of theatre for Boris Johnson. He would be unlikely to endorse the warty portrait of his political idol in Howard Brenton's Churchill in Moscow. And now, in The Autobiography of a Cad, an egotistical, Shakespeare-quoting, wildly reproductive Old Etonian and…
