8 or so years ago, I slept on a couch in the living room that had a window I often left open, that faced towards the street, because there weren't enough rooms in my house for everyone living there. One night when I was about to fall asleep, I noticed a light in the sky that looked to be about as far off as I could see without looking at the stars. I didn't see it come into view, but it stayed in place for several minutes while I watched it, almost too afraid to move because I was getting an odd and unsettling feeling from it. For most of the time, it kind of felt like it had the ability to look around, but it wasn't looking at me, until it did, and stopped moving entirely. After about three or fours seconds, it zoomed off, faster than anything I'd ever seen move. My eyes couldn't follow it at all. I haven't seen it since.
When I was a kid, I once got up to go to the bathroom, as little boys do, and was kind of groggy on the way back, so I was lightly rubbing my eyes as I walked back across the hallway from the bathroom to my room. Suddenly, I stopped and felt a presence floating above me, and when I looked up, I saw a little girl in the air above me, looking down at me with an intense glare. She had an older set of clothes on, probably from 1800's North America, and she simply looked at me without saying anything. I honestly don't remember what her facial expression was. I felt as though I couldn't just walk past her though, and so instinctively thought to try and send her away by praying to God to make her leave, and it worked. I found out later that I have the ability to see Angels and Demons, and that the girl who came before me that night was without a doubt one of them. While I've yet to see an Angel, it has been my belief since that there is no such things as ghosts, but that demons are instead trying to scare humans based on what we think we should see in haunted houses, graveyards and the like, in an attempt to get us to a point where the devil can tempt us to his side.