The University of Durham has boasted many distinguished students over the years: Sir Harold Evans, Justin Welby, Andrew Strauss and even the worst 007, George Lazenby. But it seems the current crop of angry undergraduates are not so keen on old-fashioned notions of argument and debate. For Friday night saw the good neophytes of South College attempt to cancel a guest at their Christmas formal, a man quite well-known to Mr S: none other than The Spectator’s own Rod Liddle.