When I was little I had an electric racetrack. It had the big clunky power cord. I wrapped my fingers around the extension cord and touched both prongs as I plugged it in...

I had a house with this crappy rusty fluorescent light above the kitchen sink. I decided i didn't want it there any more. I took a wire cutters.. (thank the Fleshy Jesus they were rubber handled) and cut the power wire to the light. HOLY MOTHER OF GOD I have never seen a spark that bright before... It welded the wire cutter tips together...

and as a child I touched a 9V battery to my tongue. I am a sissy. I won't do it again to this day...