You don't think people can throw tantrums like that? You haven't seen much, then. There are real stupid people out there. Hell, most of them would never admit to throwing tantrums like that, and it wouldn't shock me if someone on this very forums has thrown a huge fuss over a game.

Throwing controllers.. screaming at the top of their lungs. I lived with 4 siblings, and one of my brothers would throw the worst tantrums (maybe not like in the video, but close enough) over simple things. So, whether this video is real or fake, either wouldn't surprise me.