The one-liner to save Gordon Brown

Gordon Brown met his Nemesis yesterday in the unlikely figure of the "bigoted woman", Gillian Duffy, a pensioner from Rochdale. Labour strategists must be close to despair this morning. How can the PM possibly live down what is shaping up to be one of the worst election gaffes in living memory? There's always the possibility that a strong performance in tonight's leaders' debate could turn things around. Unlikely as it may seem, there might just be a one-liner with which Brown could erase the memory of yesterday. It's going to have to be better than " Let the work of change begin " or " The Arctic Monkeys really wake you up in the morning ". Could some humour, or some more penitence win us over? What would you say, in his shoes?