Mr Miliband said "Instead of these ridiculous tactics, why don't you show a bit more backbone and turn up for the head-to-head debate with me? Any time, anywhere, any place.""We know you lost to the deputy prime minister last time - why don't you just cut out the feeble excuses and admit the truth: you are worried you might lose again?
Mr Cameron replied: "The truth is you are weak and despicable and want to crawl to power in Alex Salmond's pocket."
Deputy Prime Minister Nick Clegg: "I say to David Cameron: You can refuse to face the public, but you can't deny your record. You can try to chicken out of the debates, but don't ever again claim that you provide strong leadership."