It be a sight better to have the US type of electric chair fitted. Lot more civilised I would have thought. Just select required voltage, press button for seat number#, bingo peace and calm is restored without any fuss and hysteria whatsoever.
I`ll patent it as the Easy Chair, knock one up from the seats of my old CV2 that the wife is using as a plant pot and take it along to the Dragons Den for a demo.