I did forget about using an induction coil in my quick description of a zapper. I built a couple of these units for varmint guards on my deer feeders using a small capacitor and alternating hot/grounded wire bars around the feed slinger. Kind of entertaining to see how far squirrels and raccoons will fly when shocked hard. The high voltage (20k+) will let the shock reach out and penetrate a beak or fur, but it's the amps delivered that will stop the heart.
