[stephengillie]

I'd never thought of stabbing someone with a drone. How much pressure does it take to puncture the average human's skin? How fast can a quadcopter fly? How much does a steak knife weigh? We can build the future weapons of war...

[venomsnake]

Less than you think unless you hit a rib or bone. But if you are really nasty just put pressure operated container that fires a poison into the body http://en.wikipedia.org/wiki/Bulgarian_umbrella style. Depending on the payload they won't save him even if he is in ER the moment he gets shot.