Woah woah woah... I never said there was a lightbulb!
What are you talking about? The bulb is fine.
Two: one to get it 95% done, and the second to give it the twist at the end.
A: One after reflecting in the twilight on the merit of the previous bulb.
A: We can see no need for uninstallation and have therefore made no provision for light bulbs to be removed.