Watch the guy in the middle go ballistic around 22 seconds into the video. He then continues to go ballistic, destroying the office and beating people up until he's eventually tackled to the ground. I hope this isn't real. (Thanks to Ed for the tip!)
Real or not, there are enough crazies out there to support it being true!
What gets me are all of the other guys in the office that stand around like major wimps and do nothing at first to stop this nut bag. A group a queens would have kicked this guys ass! :-)
Disclaimer: What you read here may or may not be true. I do not claim credit for any images, except where noted. Please let me know if I use your image and you would like it removed.