You turn me on.
In one fine evening it can turn your host into... GHOST.
You bust a nut
One. He holds it up and the world revolves around him.
Two. One to screw it in and one to complain that it's electrified.
Red paint! Whats green, and smells like red paint Green paint :) Can't believe how many time I switch to the second, and they don't get it!
No IT guys change light bulbs, they just keep flicking the switch on and off again until something happens.