Two, but you have to get them in there first.
It takes four. One to screw in the bulb, and three others to watch and say, "Really dude, you look huge!"
One. They simply hold the bulb and wait for the world to revolve around them.
One.
One to screw in the lightbulb, stock four carts of supplies, and handle seventeen simultaneous customers at any one time for five consecutive hours.
Not many of them know how to dance.
Mice crispies.
