Quadrotors vs. Tesla coils
And if you're wondering what happens if the quadrotor isn't shielded:
A mostly drones weblog
Some of them look like dragonflies and are meant to be spies, some are huge and are given government kill lists.
Cheap flying robots have already changed the world, but it took a while for people to notice.
-- lemonodor
And if you're wondering what happens if the quadrotor isn't shielded: