To CMS Cameron McKenna, where pupils and students had started the day with entrepreneur James Caan and deputy prime minister Nick Clegg as part of the ‘Opening Doors’ social mobility campaign, before going on to a publisher and a bank.

Obiter doesn’t know what other places did, but the insight into a legal career was spot on, in that the youngsters were set to work on intractable problems within four minutes of arriving at a time of day Obiter tends to call ‘lunch break’. It took four groups 15 minutes to talk through crimes of cannibalism, looting and tweeting a fake bombscare, and the ethics of TV cameras in court. How soon, CMS must be wondering, can they start?