Like all kids--well, all kids in the 90s anyway--I took inordinate pleasure in charging the flash on a disposable camera, holding it in my right hand (forefinger along the top, thumb grasping firmly around the bottom corner), then smashing it into my left palm to discharge the flash without taking a photo.
That was fun. But what I loved was going up to a friend in the dark and then suddenly doing so as close to their unprepared eyes as possible.
Tonight, as I drove through a lightning storm on the way home from Harrisonburg, God repaid me in kind and with interest.