

Anyone wearing one sock and shoe with one fully naked foot is either deeply deranged or some kind of alien pod person. It is a pale approximation of human behavior. Unless you are stumbling away from a grenade attack or something, there is no reason to ever exist like that, even momentarily.
















Doesn’t your country have privacy laws? In the USA, this would likely be invasion of privacy, harassment, or public nuisance, which are illegal. If it is directly over your property or at an angle that is not visible from the street, then it is absolutely invasion of privacy (sometimes called “peeping Tom” laws). If you have told them to stop, then it’s likely harassment or stalking. Ask a lawyer.
You could send them a cease and desist letter. Or you could construct some passive deterrents; for example, long loops of black thread that would be invisible to the drone and get tangled in the rotors.