It only takes two mice to screw in a light bulb. The hard part is getting them in there.
As a mother, I choose not to screw it in. Light bulbs are dangerous weapons created by the Soviet Union, and I will not screw it in; it could severely hurt my child. As everyone knows, light bulbs are the principle source of autism in this world, and I have to take a stand on it.
One. No, two! No, four! No, eight! No, sixteen! No, thirty-two! ...
Two - One to put it most of the way in, and one to give it an interesting twist at the end.
Three; one to drop the bulb and two to yell "pick it up pick it up!"
Not getting hard.
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.
Eyes down for a full mouse' !