Asteroid.

I don't care how many times I'm told that the asteroid will probably not hit earth I don't have the most faith in the accuracy of the UK media, especially when people in Russia have actually died from a meteor strike.

I would be annoyed if it did strike and I hadn't got out for a spin before the 100 years of ash filled skies. And why not stop at the Filling Station Cafe for a cuppa and a burger while you're at it. Perfect, even if the asteroid doesn't hit.