In sundae school.
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1,000,001: One to change the bulb and 1,000,000 to rebuild civilization to the point where they need light bulbs again.
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None. They just let Marketing explain that "Dead Bulb" is a feature.
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Three:
One to write the light bulb removal program,
one to write the light bulb insertion program, and
one to act as a light bulb administrator to make sure nobody else tries to change the light bulb at the same time.
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They're both plastic and little boys turn them on.
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