Do you never leave your house or go close to the windows? If you do, there you go. Do you never run into traffic or stop at red lights in your car? If you do,

Do you never leave your house or go close to the windows? If you do, there you go. Do you never run into traffic or stop at red lights in your car? If you do, there you go. I wouldn't assume you'd always see the drone coming, even if you hear it it can probably strike in just a few seconds, before you realize what it is. If the attacker wants to avoid being identified a remotely controlled drone is better than an RPG, and probably more accurate as well.