OK, so apparently there's this dude in England who is like the British version of David Blaine. His name is Derren Brown.
This video is of one of his stunts. I won't ruin what he does, I'll just let you watch.
http://www.kontraband.com/show/show.asp?id=2349 (Long, but worth it.)
I guess in order to believe it, you have to believe that he could put people into a catatonic state with flashes of light? Either way, it is a pretty elaborate prank and entertaining to watch, but the hypnotizing of the mark seems a little fake to me as I'm not quick to believe someone is being hypnotized. Thoughts on this?