Two. One to assume the ladder and one to change the bulb.
A': None. If the government would just leave it alone, it would screw itself in.
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Three - one to cast the bulb into the outer darkness, and two to catch it when it falls.
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Because he was under cover.
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None, because people who glow in the dark don't need light bulbs.
Note: Topical to the Chernobyl Reactor disaster of 1984.
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and says make me one with everything.
or