Ok so I've had this for ages now, but now it seems that when I'm tired, and my guard is down, they attack. The other day, I was layign in bed, about to go to sleep, when the thought came to me that I'd enjoy murdering someone, and my brain threw all these details at me, and that's all I recall. However, I was so tired that now, I can't remember enough to analyse this. Basically, the only real thing that I remember is thinking to myself 'This is gonna give me hell in the morning.'