Its causing anger because,

They are finding out how stupid they are.

He could probably out smart you blister.
larry Reviewed by larry on . Questioning our Beliefs From http://www.channel4.com/culture/microsites/B/believeitornot/derrenbrown.html "Derren Brown, mind-manipulator extraordinaire (who sparked the most ever complaints to Ofcom for his recreation of a séance on Channel 4 last year), has taken his latest debunking mission to America. In a country where his mind control skills are unknown, he sets out once again to show us, not that our beliefs are wrong, but just how easy it is to dupe people into believing 10 impossible things before Rating: 5