One but you should have seen the bulb it must have been THIS big.
One. He puts the bulb in and lets the world revolve around him.
One but the bulb will have to spend four hours in the waiting room.
A Werehouse.
There is nothing wrong with the lightbulb.
Two. One to change it and one to put some chips with it.
None. People that glow in the dark don't need lights.
One baits his hook the other hates his book.