http://www.youtube.com/watch?v=FkmQZjZSjk4 An experiment conducted by Stanford University in which one group of students are chosen to play as prison guards and another group of students are chosen to play as prison inmates. Objective was to see if the guards were able to become corrupt even in a fake environment. They were to eat and sleep in the prison for 2 weeks. Experiment came to an end after 6 days.