Two. One to put it in and one to complain that he never screws anything anymore.
Seriously who knows? It's pitch black in here.
How many libertarians does it take to screw in a light-bulb? None. The market will take care of it.
Dad.
Yep, people are just dying to get in there
Who says it's dark
Nun.
No IT guys change light bulbs, they just keep flicking the switch on and off again until something happens.
Isn't it cooked
100. 1 to change the light bulb and the other 99 to complain about how the old light bulb was much better.