Have you ever wished you could get back at someone who has treated you unjustly? You just want them to experience, if only for a moment, the frustration or pain that they have inflicted on you. Revenge is never a good idea, is it? But sometimes it’s awfully satisfying.

A few years ago, a man named Mark Bao had his laptop stolen. Fortunately, Bao had a software program on his laptop that allowed him to access it remotely. To his surprise, he discovered that the thief had used the laptop to record a video of himself practicing various dance moves. And this thief was a really horrible dancer.

So Bao uploaded the dancing thief video to YouTube with the title “Don’t steal computers from people who know how to use computers.” The embarrassed thief returned the laptop and begged Bao to take the…