When I heard the news that the indomitable Dr Ruth, sexpert, author of 40 books, celebrity broadcaster and courageous holocaust survivor, had died on Friday at the very great age of 96, a moment of sadness at her passing quickly gave way to a grin. It’s impossible for me to think about this diminutive and delightful pioneer of sexual straight-talking without remembering both her twinkly personality and great humour. And the fact that, though she is now gone, her legacy and her wisdom are very much alive — and still relevant — today. Dishing out sex advice like “good chicken...