I feel somewhat bad for sharing life stories on a technical forum, but here it goes. As a young boy, 5-ish, I was sleeping with my mother and father in the room, and my grandmother rushes in, all pale, shouting something which directly translates to "Flying body! Flying body!". I distinctly remember having nightmares afterward with flying torsos of humans, because my mind interpreted the "Flying body" statement as literal.
My parents take me with them and the four of us go outside. Sure enough, super close to the top of the buildings is a huge incandescent ... circle. It felt like it had no height, just a 2D circle, just moving somewhat slowly, soundless, above the buildings. Now, this went on for a total of 5 minutes until we lost all visibility, to the other buildings (again, this thing was very very very close to the building tops).
Add two more decades to my life, and I remember this incident. I look online and sure enough, I find an old phpBB forum where people talk about 'the incident'. Apparently, several people tracked it that evening and wrote about it. Unfortunately, I can't find the forum anymore, and going to the library to look for newspaper clippings yielded nothing, so this is always going to be a story that I'll believe, but probably no one else.
My parents still remember the incident, my grandmother is no longer with us. I've thought about what it might have been, trying to come up with a somewhat reasonable explanation, but I have yet to find any.