One; after reflecting in the twilight on the merit of the previous bulb.
or
He was in shock for a week.
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Because all his uncles were "ants"!
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Just one, but he'll also want to do something about your nose.
or
Because it wanted to be a flat screen.
or
On the latest episode of "Celebrity Apprentice", Donald Trump fired himself!
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Two, one to call the electrician, and one to mix the drinks.
or