[EricH]

How many programmers does it take to change a light bulb?
None. They can see the screen better in the dark, and besides, it's a hardware problem.

How many mechanical engineers does it take to change a light bulb?
None. The electrical system isn't working. Therefore, it's an electrical problem.

How many electrical engineers does it take to change a light bulb?
"Hey! You didn't tell us this light bulb was burned out! You fix it!"