I thought this was great. Basically they staged the whole thing. They set up a zombie style videogame in a pub and waited until someone played it. Somehow through light flashes they were able to hyptnotize the poor guy and well, you'll have to watch it to see what they did to him.
Warning, broadband is highly recommended, it's about a 20mb video.
The ultimate in videogames or the ultimate mind fuck. You Decide.
Link
Edit: If you download the video via the link on the website and view it through a media player it's a lot larger and easier to see.