The good guy kicking the villain off a cliff has been done many times. (Star Trek III for example.)
What should of happened is this: Micheal is standing by the ledge about to kick Sheppard off. McKay grabs his remote control car; drives it towards Michael; Michael is startled, slips on the car and falls to his death.
What should of happened is this: Micheal is standing by the ledge about to kick Sheppard off. McKay grabs his remote control car; drives it towards Michael; Michael is startled, slips on the car and falls to his death.
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