Well, stories on ananova should be taken with a pinch of salt. And remember, last time somebody linked to one, it sparked a huge religion/racism debate.
I'm sure with a little imagination, this could be turned into a hot discussion topic also.
It reminds me of that story about the ambulance men who were called to a house to assist after a domestic accident. The guy who'd called them was burnt on his nether regions, and on the way down the stairs on a stretcher reluctantly revealed how it had happened. He'd filled his cigarette lighter whilst sitting on the loo, and thrown the empty container into the pan before enjoying his smoke and a long read of the Sun. The glowing stub had been the last thing to join the other discarded items. The medics laughed so much they dropped the stretcher and the guy broke his arm. Of course that may be another urban myth, but it was told me by a friend of the sister-in-law of the guy's...
I read the same story some time ago in one of the newspapers. In support of 'Human Combustion' I read in a book of 'Strange Tales' of the man who had 'disappeared' in a ball of intense fire while seated on the loo. All that remained to be photographed was a pair of blackened wellington boots.
I suppose there is something to be said for 'going out with a bang'.