Betty and Bob Factory Workers
Betty: "I can make the boss give me the day off."
Bob: "You know the boss won't let you off, it's rush time."
Betty: "I have a fool proof plan, you just wait and see."
Betty then leaped up to a cross beam and hung upside-down from the ceiling.
Boss comes in sees his upside down employee. "Betty! What do you think you are doing hanging upside down from the rafters?" he asked
Betty responds: "Don't you recognize a light ficture when you see one? I am a light bulb!"
The boss responds: "Betty, you've been working so hard I think you've lost your mind. Take the day off, go home and rest."
Elated, Betty happily danced joyfully out the door.
Bob begins to follow Betty out the door.
The boss demands: "Hey! Where do you think you are going?"
Bob responds: "I can't work in the dark"