Popular Science is reporting that a piece of bread, dropped by a passing bird, has managed to damage the Large Hadron Collider.
The bird dropped some bread on a section of outdoor machinery, eventually leading to significant over heating in parts of the accelerator. The LHC was not operational at the time of the incident, but the spike produced so much heat that had the beam been on, automatic failsafes would have shut down the machine.
If this really is the work of time-traveling Higgs boson particles, however, they're demonstrating a lot of creativity, but not a lot of competence. The Bird Incident won't delay the reactivation of the facility, which is still scheduled for later this month.
Baguette Dropped From Bird's Beak Shuts Down the Large Hadron Collider (Really), Popular Science. You should follow the link just to see their illustration "according to eyewitness accounts". Via stevesilberman.