I once thought I saw a UFO. Middle of the night in the mountains and a set of lights in a straight line comes silently running across the sky and disappears right in front of me. No clouds in the sky. Thought town might be obliterated when I got back to civilization.
Turns out it was Elon Musk's satellites. Kinda disappointing actually. A UFO would've been cooler.
I saw that 2x this year. First time I was alone in a new spot and it definitely was a bit eerie!