If the mentally deficient don't see you take off or land they have a big problem trying to find you. Simply plan your flights to avoid the area's that the mentally ill frequent.
I'm basing it on whether they are above me or below me in the camera view. I don't know their altitude, but I do know mine. There is an airport about 5 miles away and we see them all the time.
I've not flown my drones for a while, so here is a new clip of Porth Nanven, sometimes known as "Dinosaur Egg Beach", in the Cot Valley, near St. Just, west Cornwall. I hope you enjoy it
Scuba diving for over thirty years I have flooded many cameras and dive lights, the trick is to have distilled water available. When I am out on the boat I always have a large ziplock back full of distilled water. If you flood or dunk...