Junko Gardenour says: "This is a real-life "the Office" outrage caught by security camera. There is a follow up video clip (with audio) to this caught via cell phone by one of the employees on the scene, which shows the outraged worker eventually got tazed. Not clear exactly where it happened, but some people wrote in that this happened in Russia. I guess the corporate world can drive people to the brink of insanity anywhere in the world."
Real or fake? I don't know. Link
UPDATE: Here's another view, with sound.