None, they would rather keep you in the dark!
Screw it. EDIT: has a better answer lol
Count for yourself...
A: None: The light bulb contains the seeds of its own revolution.
He holds the light-bulb over the socket and waits for the world to revolve around him.
None. Mice can't change light-bulbs as they are mere rodents without the physical or mental ability to do so. Not to mention it's much safer for them to pilfer food in the dark.
None. They like it on the dark side.
