A ruler.
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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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Only one, but it may take upwards of five years for him to get it done.
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To prevent clients from being billed twice for essentially the same service.
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Shamboo!
Frankenstein: Witch can you make me a lemonade?
Witch: Poof you are a lemonade!
or