A blonde and a brunette worked in a factory. The brunette says, "I know how to get some time off from work!" "How?" asks the blonde. "Watch this," says the brunette. She climbs up to the rafter and hangs upside down. The boss walks in, sees her and says, "What on earth are you doing?" "I'm a lightbulb," she answers. "I think you need some time off," says the boss so she jumps down and walks out. The blonde starts walking out, too. "Where are YOU going?" says the boss. The blonde replies, "I can't work in the dark!"