This is a video about Stanly Milgram's experiment on autorithy. People do things they normally wouldn't do, just because a man in a white mantel tells them to. I found in one of the most interesting experiments I have ever seen.
Stanley Milgram Experiment on Social Influence - Looking up into the Sky. This was later elaborated on Von Cialdini in his book “Influence: The Psychology of Persuasion”