Argh, dreams. I went through a phase of having really lucid nightmares a few years ago (sort of, in that I knew I was dreaming but couldn't control the world around me much), and worked out that if I stood still in the dream and really concentrated, I could wake myself up. Which worked fine for months, until the dream where I was running away from two men who were chasing me through a medieval village, and a woman hid me in her house - I cheerfully explained to her that it was okay because I was dreaming and would be safe as soon as I woke up, and she told me that not only did she already know I was dreaming, but so did they, and they were determined to kill me before I got a chance to wake myself up so that I'd die for real. Probably just my subconscious keeping two steps ahead of me, but argh all the same.