You must kill the person below you, but here's the catch. You must do it creatively.
Ready....GO!
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I will saw my left earlobe off and strangle him with it until he passes out. Then I will wait until he wakes up and make him watch The Jersey Shore. After he is brain dead, and his eyes are bleeding, I will take out one of his leg bones, sharpen it, then use it to cut out his heart.