The best personality test would be the Milgram Experiment, where you come in sit down at the controls of someone hooked up to an electric shock machine and then someone in authority, say the perspective employer, tells to you shock the guy sitting down at progressively higher levels until the guy is just screaming in pain. However, the guy is not really hooked up, he is just acting. What would be really interesting is for people that know the guy is acting if they would play along and back off to show he is not cruel or go try to impress the employer and make the actor scream.