Two. One to take out the bulb and drop it, and the other to try and sell it before it crashes.
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Two. One to take out the bulb and drop it, and the other to try and sell it before it crashes (knowing that it's already burned out).
or
Nothing, peanuts don't talk.
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Because the chicken was on vacation.
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Your breath!
or
One. But for the message of light to continue, send in your donation today.
or