" When I took Psychology 101, the professor taught us about random reinforcement. Put three groups of rats in three separate cages, each equipped with a bar. The first group of rats got a pellet every time they pressed the bar. The second group never got pellets, no matter how often they pressed. And the third group got pellets just once in a while. The first group, the professor said, eventually gets bored with the guaranteed reward and the rats who never get treats give up, too. But the random rats will press on that bar forever, hoping each time they press that this time the magic will happen, that this time they’ll get lucky. It was at that moment in class that I realized that I had become my father’s rat. "