USA: A teenage boy was arrested after sneaking into One World Trade Center, which is still under construction in New York City and is the nation’s tallest building, and ascending its 104 floors to the antenna, police said.

THERE is a line, invisible as electricity but just as shocking, that your kids will one day step over, when they move from being children to something far, far worse. Teenagers. It can happen in an instant, when a single sentence crystallises the transition, a lone throwaway remark telescopes the whole of childhood from the present to the past in the blink of an eye. Or in this case, the shake of a lamb’s tail. And that single, electrocuting sentence? “Lambs are crap.”