I have a recurring dream (1/2 dream? I sometimes wake up, still thinking I'm in the dream). I hear people in my heating vents, talking about me. The heating vents are in the walls, up by the ceiling and I can't hear exactly what the people are saying, but knowing it's about me. In real life, my heating vents are in the floor. I'll wake up and go looking through the house, trying to figure out where the talkers are. lol my kids think it's funny when I tell them.