I jammed things in sockets when i was little, and once i'd figured out how to do it properly i blew myself up with a screwdriver. It melted the handle and blew the fuses for the whole house. I got shcoked from christmas tree lights before. There the only mains shocks - i've had plenty from 12v and 24v though - and coz 12 and 24v are DC they pull instead of throw. The outboard on my mates boat just has two wires sticking out to turn it off - you just gota touch them together. I also put a mobile phone charger on my tounge the other day actually, just to see how strong it was. I'd say it was as strong as 2 9v batteries. I would carry on, but i need a shit.