Relax. This is not more about school dinners. This was a response to Classroom Chaos, the television documentary by director Roger Graef. It received considerable press coverage, with most commentators enjoying relating the juicier bits of misbehaviour in schools. Everyone agreed something must be done. Few had any idea what. Purvis was an exception. Despite her preference for carrots, she added ominously, "sticks may have their place". And not just sticks, but handcuffs too. "Imagine, for a moment, real...