One of my close friends is an ex-mercenary who now works in border security/customs. He's seen a lot of combat, been shot many times and so forth. Against his therapist's wishes he still plays games like GTA and stuff but it helps him keep busy while he's up at all hours of the night (PTSD makes sleep difficult). Anyway, on the rare occasion he sleeps, it's very sudden. I'll be hearing his Scottish accent one second and the next second his character is still and I hear loud snoring. Funny bloke.