Share my pain
The man dubbed the Mad Professor by his sister ("he's still quite eccentric") bravely launched an Engineering Council conference with a confession of the nightmare he endured at the calloused hands of mechanical types.
In particular, he "got on the wrong side" of his woodwork teacher, who regularly punished him by trapping his hair in a vice.
David, whose thinning locks possibly date - who knows? - from this experience, said: "Not surpisingly, this pushed me towards the arts side of things."
Meanwhile, his predecessor, Nick Tate, should be settling in nicely at struggling boys' comp, Winchester College... which gives us a chance to shamelessly plug our sister publication, Primary. This month, the magazine delivers another free set of sparkly gold stars for teachers to stick on pupils' work.
The last set was apparently a big hit with Nick, who stuck them on memos to staff at the QCA to show how happy he was with their work. The new lot should be even more useful as an encouragement for the school's plucky under achievers battling to overcome disadvantage.