Some psychopaths end up loving it. There are the rare nutcases.

This dude would tell me his stories about the military and how he would randomly run into this other dude who would start talking about dead bodies, just very little respect for the dead, joke about people he killed. Maybe it was a coping mechanism, maybe he was a psychopath?

It reminds me of that scene in full metal jacket where they run into the guys who kept a dead vietnamese guy around, put a hat on him and joked about him.