Cameron didn't go in for the kill - he just asked a similar version of the same question. Brown replied by praising Jacqui Smith and Hazel Blears - i.e. "Please, girls, amnesty! Don't make any nasty speeches about me. You know that would finish me off. You don't hate old uncle Gordy, do you? I'm quite a nice chap, you don't want to pull that trigger. You were both always on my mind".
Cameron started again and Brown then wheeled out his two automatic rebuttals: a) Why don't you ask about policies, and b) You have no policies. He went into one of those American-style chants: "What would they do on the economy? Nothing!" His MPs even tried to join in for a while and, for a brief few seconds, Brown was showing leadership: if only in a cheerleader-style way and, even then, he screwed up the rhythm so that his last "Nothing!" was said alone.
Cameron tried again: will he say he'll keep Darling for the next seven days? Brown praised Darling's record, in an almost valedictory way. He didn't express confidence in him, so Cameron asked why the markets should have faith in Darling if the PM doesn't. Isn't it strange, Brown said, that the Tories want an election but they have no policies on housing repossessions etc. What a non-sequitur. If the Tories have no policies, shouldn't the electorate be the people to judge?
Clegg said that the real choice is between Labour and the Liberal Democrats - that, at last, raised a laugh from the Labour backbenches. I hope they enjoyed it. It may be the last cause for laughter they have for some time.