Well, it was going to happen sooner or later wasn't it?
An unknown drone hobbyist has uploaded video footage of a creation that would make the Terminator smile with metallic pride: a multirotor 'coptor sporting a semi-automatic handgun - a real-world equivalent of sharks with frickin' laser beams attached to their heads.
The demonstration shows the a successful test of the handgun being fired remotely, with the drone compensating and rebalancing after each shot.
It's not yet known if the video is genuine, nor if the uploader Hogwit created the drone themselves - but such a demonstration only damages the reputation of drone hobbyists. Any nutter could strap a brick to a drone, fly it to a dangerous height over a public area, and turn off the motors - transforming their remote controlled vehicle into a lethal weapon.
A drone is dangerous only if it's improperly handled by its pilot - but strapping a gun to it with the capacity to fire it from a remote location is just asking for trouble.