I owe thanks to Thor for
posting a link to Derren Brown's placebo effect television special in the vitamins thread. Since watching this one video, I have watched several others of his posted on youtube, and am really impressed by this guy.
If you haven't already, you should check out the other half of the placebo special in which he induces a religious experience in an atheist:
...and his special in which he teaches an ordinary guy how to be a faith healer:
...and his show in which he conducts a séance and scares the mother-loving crap out of a bunch of college students:
...his encounter and investigation of a local Liverpool medium:
It's all really good stuff, and there are lots more. Enjoy (and thanks again, Thor).