I haven't ever seen a ghost, but I believe I saw a UFO. When I lived with my parents, I was laying outside on the driveway talking to my high school sweet heart when I clearly saw a set of lights traveling Super fast back and forth in the sky. I immediately told my GF but after saying it, I realized how silly it sounded and tried to change the subject. She brought it up days later and did indeed think it was silly. I don;t mention it so much anymore after I tried telling a couple of close relatives only to be told it must have mistaken what I saw or there must be some logical explanation. I simply accepted it and moved on, but this kinda stuff really fascinates me now.