English bawdy is something to be treasured. Think of Frankie Howerd in Up Pompeii! looking knowingly at the camera. Oo, missus! Or Ken Dodd, still going strong with his tickling stick. No need for Dr Freud on that score. Or the many exchanges between Kenneth Williams and Sid James in the Carry On films. “'And may his wisdom light up your life’. 'And up yours.’”

What sauce!

The Karsi of Kalabar and Sir Sidney Ruff-Diamond; Donald McGill’s seaside postcards, with red-faced butchers wielding “choppers”; Viz magazine. The last is slightly different, admittedly, because everybody they send up – the Fat Slags, Roger Mellie, the Man on the Telly – is part of one big self-conscious joke. Readers are invited to laugh at their own laughter. There used to be a Viz character called Finbar Saunders (and his double entendres). But, as Kenneth Horne once said: “A double entendre has a single meaning.”