How Many Software Engineers -- Does It Take To Change A Light Bulb?

How many software engineers -- does it take to change a light bulb?
Two. One always leaves in the middle of the project....
How many software engineers -- does it take to change a light bulb?
Four. One to design the change, one to implement it, one to document it, and one to maintain it afterwards....
How many software engineers -- does it take to change a light bulb?
The change is 90 percent complete....
How many software engineers -- does it take to change a light bulb?
One, but if he changes it, the whole building will probably fall down....
How many hardware engineers -- does it take to change a light bulb?
None. "We'll fix it in software....
How many software engineers -- does it take to change a light bulb?
None. It's a hardware problem....
How many software engineers -- does it take to change a light bulb?
None. "We'll document it in the manual....
How many software engineers -- does it take to change a light bulb?
We looked at the light fixture and decided there's no point trying to maintain it....
How many software engineers -- does it take to change a light bulb?
Four, plus one senior analyst to manage the project, one technical writer to correct the spelling and grammar of the one who documented it, one light bulb librarian, a sales-force of at least five to drum up enough users who want to turn the light on, 274 users to burn out the new bulb, at which point we go to tender for another light bulb change,....