If you were given the job of delivering a mildly painful, but ultimately harmless, electric shock to a stranger, would you do it? With your boss watching carefully, would you continue to apply the painful shocks, even as they increased in intensity? What if the victim began to cry out in pain and agony, begging for you to stop? You may think that no one would be heartless enough to keep hurting a stranger like this, but you’d be surprised. A 1974 experiment simulated this very scenario and found that a startlingly high number of people would in fact continue delivering the agonizing shocks, and all because of one factor: authority.