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Those good humoured folks at Cern have finally equipped their own resident Gordon Freeman with the tools necessary to stop the impending invasion by the Combine construct. Picasa Images.

The idea came from a reddit comment

One of our quick-thinking redditors suggested a plan to save mankind. We'd send CERN a crowbar. Just to be safe, we made it a wrecking bar, threw in a headcrab hat (for training purposes) and Fark donated a Half-life strategy guide to the cause.

Additionally, we found a physicist there who understood the magnitude of this project -- she's also responsible for the Large Hadron Rap, a subversive way for young people to learn about particle physics without knowing it.