drone fitted with an 80,000 volt tazer.

[BeardyMan]

my mate flies the little quadcopter things (UAV) which he can programme to follow certain instructions. He uses his for aerial photography

All well and good, in fine weather. Get a bit of wind though, and they're all over the shop. Too light. I won't be worrying about being tazered by a drone, just yet.

You could take these down with a catapult, save those arrows/bolts/pellets...