[Fallout]

My uncle has done it all in the military. I won't go into details, but basically he couldn't hack normal life. He did loads of jobs after like security, police, armed police, body guard etc. and none of them could fill that void. He is the bizarre sort that craves the action rather than suffers PTSD from it though. All the things he did meant he just couldn't do a mundane job afterwards and derive satisfaction from the sort of things we'd find fun or a rush. He's over 60 now and still in other countries shooting at people. I suspect if he hadn't found those opportunities he would be in prison for something or other.