Penny: You know, sometimes stuff just happens, and there's nothing you can do about it. For example, Lisa Peterson hasn't talked to me since the 11th grade, because no matter how much you apologize, you can't go back and un-dry-hump someone's boyfriend.
Sheldon: I see. You're saying I'm facing Starfleet Academy's unwinnable command scenario, the Kobayashi Maru.
Penny: Exactly. Sometimes you can't win.
Sheldon: Captain Kirk won.
Penny: Kirk cheated.
Sheldon: Impressive that you know that. It's hard to believe I'm actually having this conversation with you.
Penny: Right there with you.