Not sure if you guys know it...
...basically, you're told to keep on staring at this white ball on a black screen, and to crank up the volume a bit.
You focus on the ball moving back and forth, veeeeery slowly, while listening to a soft, soothing voice in the background that keeps repeating the same words over and over.
All this, in order to "be hypnotized!"
Alas, not so.
Scared the hell out of me, but it scared the FUCK out of a friend of mine that I showed it to right after. She was in tears...but she was laughing too, so I'm not sure if it was all that bad.