I have seen on several occasions that if u spot some thing weird in sky moving,they prevent u pointing to it,when it was asked most time it said 'it may harm u'.in all cases they were afraid when i or somebody else tried to point .and they don't want to talk about it.many times i saw real fear in their eyes.
I have never understood people fearing a light in the sky. Now that I Know about ball lightning, and that nobody has ever survived an encounter, I would be more wary, but I simply do not understand this element of extreme fear of a light in the sky.
Heck, or even an alien spaceship for that matter. I might get killed immediately sure, but I cannot see myself fearing such, I'd be running up to it like a Kid who just won the Golden Ticket to Wonkas Factory.