Scientists near Geneva are weeks away from switching on the Large Hadron Collider, a particle accelerator that promises to change our understanding of the universe forever. A Reddit user, however, has considered the far reaching implications of this device, and fears that a real-life resonance cascade, as seen in the events of Half-Life, could occur, leading to Headcrab incidents the world over.

Luckily for humanity, this reader has our welfare at the forefront of his mind and sent along a tool that will protect civilization from alien invasion, should disaster strike:

Upon learning that the Cern lab would be recreating the ill-fated Black Mesa project, Mad_Gouki thought it’d be prudent to send them a red crowbar for the pending alien invasion. Chris knows a few fellow physicists working at the lab, so we’ll do our best to get this in the right hands. Let’s hope they have someone there named Gordon Freeman who knows what to do with it…

Godspeed, little crowbar, may you find the right hands and serve as the barrier between us and total world devastation.