this was a very interesting read, i may consider trying to make my stun boots 'n gloves myself evil:
http://electronics.howstuffworks.com/stun-gun2.htm

[quote:feeb7]Standard Stun Gun
Conventional stun guns have a fairly simple design. They are about the size of a flashlight, and they work on ordinary 9-volt batteries. The batteries supply electricity to a circuit consisting of various electrical components. The circuitry includes multiple transformers, components that boost the voltage in the circuit, typically to between 20,000 and 150,000 volts, and reduce the amperage. It also includes a oscillator, a component that fluctuates current to produce a specific pulse pattern of electricity. This current charges a capacitor. The capacitor builds up a charge, and releases it to the electrodes, the "business end" of the circuit. [/quote:feeb7]

http://www.howstuffworks.com/
great site