I'm a Chandelier

As the forman was inspecting the workmen on site, he was
suprised to find one worker hanging from a rope in the middle
of the room repeating, "I'm a chandelier, I'm a chandelier."
The forman gives him a stern talking to as the other men
watched and orders him back to work. During his next
inspection of the same room, again the worker is hanging from
the rope doing exactly what he was told not to.
Furious at his disobedience the forman fires him on the spot.
To his surprise every worker in the room begins packing up
their tools and leaving.
He stops one worker and says, "Why are all of you leaving?"
To which the reply is "You don't expect us to work without light
do you?"