In Oxford right now a subdued conga line has wrapped itself around Waterstone’s bookshop on the corner of Broad Street and Cornmarket Street. It’s quite long. It’s got itself at least halfway up Ship Street and seems to be growing. Six feet deep in parts. Thankfully those taking part are not jumping up and down and kicking their feet from side to side and inappropriately touching the hips of the stranger standing in front of them. They have a certain dignity. Several hundred of them, I’d say, though I can’t be sure. But it’s not one of those pseudo ‘protest’ groups, certainly. Which is probably just as well because they are seemingly waiting for Sir David Attenborough who is promoting his memoirs, Life on Air, and is due to arrive at 4.30pm.