I've got one of those really small micro RC cars ($3.00), was going to use the transmitter/reciever circuits for something else. Also kind of hoped for a super capacitor in the car. The range is maybe 15 feet, so wasn't enough for stripping it down. Don't think it's even 1 inch tall. It would be tough to shock somebody wearing shoes...
Wonder how bad a shock somebody (no way I'm testing this...) would get off the flash unit from a disposable camera? It's a relatively small board, and runs off a single AA battery.
My only interestin these shocker/stun-gun posts, is hearing about the accidental shocks while building these things. Even a lab rat only needs to get zapped a couple of times to learn a lesson...