Indeed and I remember the curious case of someone I always thought was a psychopath. It was this guy living in my neighbourhood, a bit younger than me, from a troubled family, I think his father was an alcoholic. I avoided this guy whenever I could but sometimes he just happened to be around. He was a well built boy but not tall, the type of guy who doesn't need to exercise to have power. I think he could have beaten three of us at once, if he caught us. This guy I've heard once telling the others how he punched his father in the face. He must have been around 15 years old. A cousin of mine did that once too, to his stepfather who was abusing his mother. Then my cousin ran and came to our home. I remember his trauma after that, he didn't like to talk about it. Well, this other guy seemed nothing like that. He was enjoying that and he was sharing it for the others' enjoyment. Some years later, I guess he was about 20 years old, I heard him again telling a similar story, but only for some seconds, while I was passing by. It's one of the stories I regret to have missed in my life. Because this guy was telling the others how he and his buddies were partying and they got drunk and entered this hotel in a youth summer resort and got in fights with others. And he described very vividly his encounter with another guy in whose room he broke, making a detailed introspection in that guy's mind at the moment of the confrontation, of what that guy was thinking, of how that guy was defining the situation and weighing his options. I'm sorry I don't remind the exact words he used, because it was a great description in very fine detail. I still think the guy is a psychopath, even more because of that.