This has an interesting effect: what most people would think of as nightmares, I think of as exciting choose-your-own-adventures, or, if I don't feel like expending the effort to change anything, the dream equivalent of an intense movie or TV episode. I guess I should also mention that I often have repeating dreams as well, so I can make different choices each time through - if going left leads to getting mauled by a werewolf, and going right means ending up tied to a torture rack, then I'll go down the stairs instead. (See what I mean about things that most people would consider nightmares?)
Because I know my dreams aren't real, these nightmarish dream situations aren't nearly as terrifying as they could be. In fact, I get the same sort of thrill out of them that I do out of watching or reading about fictional characters being trapped or hurt or threatened. These action-adventure-thriller-horror dreams can only scare me as much as I let them, so I let them scare me just enough to make me really feel alive. It's cheaper than going bungee jumping :)
The problem is those dreams where it doesn't matter that I know I'm dreaming, because whatever I'm dreaming about really does exist in the waking world. These are my version of nightmares - dreams where holiday get-togethers turn into shouting matches, where therapists are trying to dig out my deepest secrets so they can use them against me, where I'm trying my hardest to make it through my life and everyone around me is telling me it's not good enough. It doesn't matter that I know the particular instance isn't real, because I can remember times where something very similar was.
I can wake up from a dream about a bunch of mobsters turning out to really be gigantic black werewolves that rip me and my vigilante friends to shreds, shrug, and say, "Well, that was interesting." And I can dream about being chased by vampires while dress shopping at the mall, and be more frightened by the thought of making fashion decisions than by the undead monsters hunting me. But a dream about a holiday dinner that ends in yelling and tears hangs over me for hours afterward, dredging up memories I'd rather forget. I prefer the monsters. Or the government agents trying to kill me for infiltrating a top-secret base. Those I can handle.
