Just watched an interesting program: Derren Brown - The Experiments. The first part was interesting as he correctly predicted choices a person made. The second part was sickening. He had an audience choose good or bad situations for an unsuspecting person, progressively making them worse. It included entering his apartment and going through his personal belongings, smashing his TV and so on. The experiment was supposedly just as much about the mob decision making, as many options were having something good happen (win $10,000) or something bad (smash TV) and the audience seemed to always choose the bad option.
I really hate "practical jokes" like this and found it ultimately disgusting. Although having a look around the internet, seems he makes programs of lots of similar psychological experiments. Just found another one where he hypnotised several people and suggested they throw acid into a person's face. They did. He then moves on to train him to assassinate some-one.
It's painful to watch.