When you touch the tip to an electrical contact, wire, light socket, etc. and touch a finger to the metal cap at the end, the little neon bulb in it lights up. Don't worry, you won't get shocked, not even a door knob shock. The only current that flows is what your ears, acting like an antenna, pick up from the air.
That precious little $1.99 screwdriver will save you all kinds of money, and extensive house calls by the electrician. It is also a much appreciated and actually used gift.
Source: http://humor.webby.com/blog
By OpheliaD from Calgary, AB
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