KZZZZZEEERRTT!!!
Ahh, brings back memories. I once "demonstrated" my ioniser+tinfoil capacitor experiment at school. After half a dozen really LOUD sparks, someone suggested I touch it. Needless to say someone *else* beat me to it, and I got a stern lecture from the deputy head about not shocking fellow students.
Wish I'd had the know how back then to show 'em a Lifter, that would have pwned :)
We had an epidemic over here of idiots zapping people on buses with these things, and taking the igniters from old gas lighters etc. They actually had to stop the sale of those nice battery powered gas lighters thanks to the idiots using them as makeshift TASERs (take of end cap, nuff said).