There is a real danger inherent in these drones overflying your property. Someday, rascals will use them to carry dangerous payloads over your property. Imagine them carrying dog poop and releasing it on you and your deck, or worse. What about poisonous chemicals or flammables? Or a hammer as in “The Roadrunner” cartoons. This is in addition to the peeping Tom cameras spying on you. Maybe they’ll be used to attack your pets in your back yard. Anything you can imagine, will probably take place some day.
Apologies in advance, but, don't you mean "anvil"?