Two. One to screw it almost all the way in and one to give it a surprising twist at the end.
As much people as is needed to screw that lightbulb.
You can take as many as you want but they will only give you the screwing direction.
All of them.
Fish
Life eventually ends.
Deep ends really.
Two: one to get it 95% done, and the second to give it the twist at the end.
