As many as possible, and don't *ask* what they do with the old bulb.
or
Holes.
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Because an undocumented worker has been living on his head for the past 2 decades!
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Because he saw the salad dressing!
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Three. One to climb the ladder while the second kicks the ladder out from under her. And the third to say, "I knew that was too high for you dear."
or