I don’t consider these kinds of dreams nightmares - I consider them adventures! What I do depends on the situation, anyway. Usually my strategy is to evade them. Evade, evade, evade. In others words, running (or often flying, or walking through a wall, hehe) and hiding. Often I’m attacking them at the same time as running, to buy myself some more time to, well, run. Let’s see… I can remember hiding in a cave, flying away on a broomstick, hiding under bushes, scaling up cliffs, trying to outrow them in a boat, hiding in bushes, challenging them to a bet to let me escape, making timely use of secret passages, pretending to convert to the ‘dark side’ to distract them… then running, taking complicated twists and turns to throw them off, travelling back in time to a time before they knew they were hunting me, etc etc etc. I could go on for ages.
Occasionally evasion doesn’t work, and I have to face them. When this happens I either A.) Win, and they go away, B.) Lose and start running again, or C.) Find out I actually have something in common with the monster and become friends with it. Oh, and there have been a few timely interventions and near escapes where other characters helped me unexpectedly. I may have full control over my own actions, but I can’t control or predict anything else, and that’s the way I like it.
Hmm. Evasion is what I do, but it’s not really effective at stopping them. I find the best way is to try talking to them, because often I find out something surprising about them (or at the very least, it’s a good stalling tactic) that I can use. Really the most effective way is to fight back, but I don’t like doing that because it almost always exhausts me a lot, and I’m also a pacifist, so it makes me feel very guilty if I hurt anyone, even the bad guys. Fighting back gets rid of them, but I always wake up tired and grumpy afterwards.