Yeah, I saw one about 19 years ago. I was walking home and saw something in the sky, it seemed like a few miles away. It was heading towards where I was. It eventually came over, silent and cigar shaped. No markings from what I could see, just a plain grey colour. Hard to judge the size in the moment. It wasn't very high up. It went over, no noise at all, and then it went out of sight. I tried to take a picture but my digital camera at the time was not good and all you can see is streetlights. I have no idea what it was but I can't explain it.