Two. One to screw it in and one to complain that it's electrified.
Five. It's a huge problem.
Ten. 1 to screw in the lightbulb, and the other 9 to provide emotional support.
3: One holds the light bulb, and the other two spin the Chair.
A: Well first let's talk about the concept behind this whole "light bulb" thing.
can't complain"
None, they just all stand around complaining that it won't screw!