Why protest the Boat Race?

So a protestor decided to risk his life by swimming in the Thames just as the two Boat Race crews, and the huge flotilla of following craft, passed the half way point.

Why? What on earth could someone be protesting about that was worth risking their life?

Next weekend it's the Grand National at Aintree - an orgy of animal abuse which will, almost certainly, involve horses being injured and killed.

There's the ridiculous finances in football - overpaid players, debts, corruption - but what has that got to do with two rowing eights on the Thames?

And there's always the cost of the London Olympics - but that has nothing to do with the two old universities.

Maybe it's nothing about sport. Maybe it's to do with cuts in society, the NHS, Ken Livingstone's tax return...

Who knows?! It certainly ignites Twitter, which lit up with suggestions it was David Walliams training for next year's Sport Relief!

Maybe it was a suicide bomber in the style of "Four Lions" who hadn't thought that the water might stop their bomb going off?

All we do know is the guy is an idiot and has caused chaos for what is, in reality, the last great amateur sporting encounter in the world.