Science Fiction Writers to Change Lightbulb 2

Q: How many science fiction writers does it take to change a light bulb?
A: Two, but it's actually the same person doing it. He went back in time and met himself in the doorway and then the first one sat on the other one's shoulder so that they were able to reach it. Then a major time paradox occurred and the entire room, light bulb, changer and all was blown out of existence. They co-existed in a parallel universe, though.

Light Bulb - Journalists

Q: How many journalists does it take to screw in a lightbulb?
A: Three. One to report it as an inspired government program to bring light to the people, one to report it as a diabolical government plot to deprive the poor of darkness, and one to win a pulitzer prize for reporting that Electric Company hired a lightbulb assassin to break the bulb in the first place.

Light Bulb - Proofreaders

Q: How many proofreaders does it take to change a light bulb?
A: Proofreaders aren't supposed to change light bulbs. They should just query them.