A transformer and capacitor can work wonders... didn't you ever make a "cattle prod" style shocker in highschool with an ignition capacitor and a 9 volt battery??
Those were the days
I can't even remember how many fistfights that started
it's the small ones in a crowd that really piss em off... hee hee
you need to have enough wisdom to keep from making the wrong decisions but enough courage to make the right ones