I would suggest that if you're going to shoot down a drone, you file the sights on your shotgun nice and smooth first. It will do less damage when the pissed off drone owner finds who destroyed his expensive toy and comes roaring up your driveway looking to shove that shotgun up your ass.

Really, what's the deal? People have been flying radio-controlled fixed-wing model airplanes for fifty years and nobody's ever threatened to shoot them down. Is it just the word "drone"? Maybe if everyone called them "model helicopters" ya'll wouldn't feel so threatened by a friggin' toy.