Somewhere, there must be a PhD: Flashing: Exhibitionistic Disorder in the Oeuvre of Alan Bennett. It’s there in the first of his Talking Heads monologues (‘He’s been had up for exposing himself in Sainsbury’s doorway – as mother said, Tesco, you could understand it’) and in the last, Waiting for the Telegram, which opened with Thora Hird, one-time presenter of Songs of Praise, saying: ‘I saw this feller’s what-do-you-call-it today.