I dreamt a really peculiar one once. I was looking into a scene from what it seemed to be a mounted camera (I couldn't move and I don't remember seeing my body). It was the backyard of a house in some suburb, and it was dead silent. The backyard door was ajar, and suddenly I was inside the house, and there was a lady dead on the floor with an ax lodged in her head like it would be lodged in a tree trunk. I woke up at that moment, completely horrified at what I had seen, wrote the entire thing down instantly. Eventually I turned it into a short story, where a kid falls in love with an older girl, and his mom doesn't allow him to move in with her, so "he" kills her and "ends up" dying with her, holding hands. Quotation marks used because it turns out to be the boys girlfriend, who kills herself about a week later, and the story ends with a poem, written by the girl, which entails serious delusions about their relationship and the after life they will spend together.