THERE WAS A good deal of scratching and fiddling in church by guests at the wedding of the Duke and Duchess of Sussex, as we must learn to call them. (Interestingly – to me – the previous holder of Prince Harry’s subsidiary title of Earl of Dumbarton wanted to be a monk, but had to settle for ambassador to St Petersburg, before dying at Douai in 1749.)

Anyway, wherever the camera turned, it soon shied away as some celebrity checked that his trousers were done up or investigated an urgent signal from his left nostril. Yet, because the National Curriculum omits training in sitting still, for most people fidgeting is subconscious.