The first rule of broadcasting is never to tell members of the public they are wasting their time listening to you. It applies everywhere except on the football commentaries of BBC Radio 5 Live, which you should listen to even if you hate football, because in 90-minute doses you can enjoy journalism in its purest and most suicidally candid form. If a game is boring, 5 Live’s presenters say so. If overpaid players fail, they denounce them. If everyone from the spectators who have paid inflated prices for tickets to the 5 Live audience is wasting their time, they will point that out repeatedly and at length.