Yesterday the Large Hadron Collider overheated, but it wasn't because of a software error or terrorism. It was because a bird dropped a piece of bread onto some outdoor equipment.
The LHC's beam wasn't actually operational at the time, so the automatic fail-safe mechanism didn't need to kick in. Nonetheless the operation had to be shut down until the problem was found. No remarks on whether anyone tracked down the bird bomber and compensated it for the lost lunch. [Register via Pop Sci]