A tragedy has just taken place. A man lies face down on the floor. His skull has been smashed in. Blood is spewing across the Martian sands, flowing over bone fragments and lumps of brain-flesh. You are standing nearby, weeping. In your hands is a sledgehammer, covered in the remains of your sibling's face.
"I didn't mean to!" you cry. "I was just testing out the controls!". But the game will not listen. It has already passed judgement. Within seconds a large box has appeared on screen, delivering its damming verdict: "WTF? You killed your brother!!!"