Oh, and the ones I especially hate are when I can hear snakes hissing all around me. Fucking horrible stuff. I once had one where I was in my bedroom (again), and I was paralyzed with the side of my face stuck to my pillow. I could sense some entity all around me, and then I could hear scraping, and chippings of the ceiling were falling down on my face. I could suddenly look up and see what was happening, and the demon had etched some message into the ceiling for me. It was some form of antiquated language. I never understood what it meant, but it felt like some sort of threat issued to me from the Devil himself.