Ok here is one, take a fine wire with retractable barbs, inert into their arm veins till the wires are up to their shoulders, then press the button and have the retractable barbs poke out, then attatch the end of the wire to a car and driveoff quickly, ripping the veins out of their arms and let them bleed to death.
(why yes, i had a rough day at work, how could you guess?)
