During the debates he and old school chummie Nick Clegg stitched Gordon Brown up 'good and proper'.
In January we wondered if perhaps the would-be audience should now make some rules and start a petition vowing not to watch unless their demands are met.
If that sounds ridiculous it is on a par with the way the media have allowed Cameron to get maximum publicity out of these debates before they are even imminent; using each interview to show his statesman like capabilities learned at Eton public school and during five years as Prime Minster Cameron did not miss a trick.
But he too was once a fresh-faced, slimmer, man trying to make his way in politics.
The Tory campaign chests are full to bursting and those with a vested interest in returning a Tory led government throw money at the Tories as if it is going out of business; but come to think of it money going out of business is a possibility in these dark days.
The Tory campaign received a welcome free boost out of the debate surrounding the debates and unless the mainstream media are being funded by the Tories it was ludicrous.
The Tories are pulling the strings and the little people dance to their tune; so do the broadcasters it seems.
In the end it was time to say to Cameron this is it, either you show up or you don't.
Of course the others so willing to debate have it all to win and to lose.
Cameron's team began the dirty tricks some time ago and the debate about the debates is just another example of campaign strategy.
Thursday evening David Dimbleby will host this leader's debate which includes Labour leader Ed Miliband, UKIP's Nigel Farage, SNP leader Nicola Sturgeon, Leanne Wood of Plaid Cymru and the Greens' Natalie Bennett.
It is now been touted by the media as the 'Challenger's' debate no doubt to try and justify the absence of Clegg and his coalition pal Cameron.
In March Rupert Murdoch's Sky News held a carefully stage managed seven-way debate which did include Cameron. The company's Cameron bias was obvious to all.
Viewers will be hoping tonight's debate will be more of a free-for-all which will make better 'entertainment' and may help floating voters decide who gets their vote. That of course is why Cameron is still either in chicken mode or playing the little dictator.
Expect the Tories, Cameron and his campaign managers to pick the bones out of the debate and aim for some winning publicity at the expense of the brave.
Farage for Ukip, and possibly the Tories, will have his sights set on attacking Ed Miliband, Labour. This week Farage is reported as telling Ukip supporters to vote Tory in constituencies where his party does not have a hope in hell, and that says it all about Ukip and Farage.
Liberal leader Nick Clegg is also staying away as he does not have his coalition partner Cameron to support him; a sensible move probably as the leaders will be able to damage the Lib Dem campaign easily because of the coalition. Clegg is on the campaign trail making promises big style but of course he did that in 2010 and then ditched them in coalition.
Cameron and the Tories however are unable to defend their five-years in office or answer truthfully questions about their 2015 manifesto and post-election promises.
These debates are fairly new in the UK and something that has crossed the Pond. Interestingly BBC News reporting ahead of Thursday's debate says "The BBC contest, hosted by David Dimbleby from central London, begins at 20:00 BST."
'Contest' I ask you?