A software manager, a hardware manager, and a marketing manager are driving to a meeting when a tire blows. They get out of the car and look at the problem.
The software manager says, "I can't do anything about this - it's a hardware problem."
The hardware manager says, "Maybe if we turned the car off and on again, it would fix itself."
The marketing manager says, "Hey, 75% of it is working - let's ship it!"