The Natural Philosopher wrote...
My first shock of mny life was offa 12v electric train transformer coupled
to a meccano motor. It stalled and I disconnected its contacts and got a
nice zap from the inductivce surge, Threw me across the room.

The last really nasty belt I received was a static shock when I foolishly
put my hand in a Dyson vacuum cleaner canister to dislodge the fluff - just
goes to show that being a physicist with a PhD is no indication of any real
intelligence!

David