he got a little behind in his work.
or
Nearly unanswerable, since the one who tries to change it usually drops it, and the others call for a planning session.
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None. There never was any light bulb.
Notes: Probably the only really good light bulb joke of 1984.
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Well, first let's talk about the concept behind this whole "light bulb" thing.
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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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She was the fairest in the land.
or