For decades now - usually once or twice a year - I have a dream with a recurring theme. In the dreams, something happens which triggers a long-repressed memory. The memory is of me either killing someone or being responsible for someone dying. In the dream, the killing is concealed and I go on with my life. But when the dream memory comes to the surface it causes such anxiety that I wake up panicked. I usually have to really think hard to convince myself I'm not actually responsible for anyone's death. Based on this article, I have no doubt some deep-seated neuroses would put me at risk for this sort of thing.