The Day Off

Two factory worker are talking.
The woman says, "I can make the boss give me the day off."
The man replies, "How would you do that?"
The woman says,"Just wait and see." She then hangs upside-down from the ceiling.
The boys comes and says,"What are you doing?"
The woman replies,"I'm a light bulb."
The boss then says,"You've been working so much that you've gone crazy. I think you need to take the day off."
The man starts to follow her, but the boss says,"Where are you going?"
The man replies,"I'm going home too. I can't work in the dark."