Does it really have to be a lightbulb
Just one. She holds it while the world revolves around her.
None. They can't get that high! (My band teacher told me that one today)
Two. One to assure that everything possible is being done about the situation and the other one to screw it into the faucet.
10. 1 to change it and 9 to say they could have done it better.
Getting into a bit of a.tiff!