How often have you been forced to put your head in your hands when watching someone putting forward a shared viewpoint in a totally disastrous way. Just think about how all those who are arguing that we need massive cuts in carbon emissions felt when watching Newsnight tonight. Martha Kearney was chairing a debate between an academic from the University of East Anglia, and a rather loud climate change sceptic from the US.
I suspect most of us started out with an instinctive warmth for the professor. At least he was willing to go public and try to justify what seems unjustifiable. But what an incredibly arrogant and unpleasant advocate he proved to be. After demanding that he should be allowed to justify the 'tweaking' of information uninterrupted, he ended the programme by observing of his quite jovial opponent "What an asshole". As Lord Lawson might say "With enemies like that, who needs friends".