At least two, but they have to be pretty small to fit.
1. And they get 3 credits for it.
As much people as is needed to screw that lightbulb.
A: 22 one to screw it in 21 to shoot the bulb.
A: Three. One to screw it in and two more to hold down the editor.
A: Only two men fit inside a broom closet at once.
A dead epileptic.
One to screw in the lightbulb, stock four carts of supplies, and handle seventeen simultaneous customers at any one time for five consecutive hours.
At a mars bar !
Because Americans use imperial unit system.
