Chloe: no, idiot.
Rose: Well, I was just asking.
Rioko: About the robot you're using. It has an unstable power source. It can go mad and kill its user. How do you think cruller died? That crystal was supposed to stabilize the robot.
Chloe: What do you mean "go mad"?
Robot: Power source malfunctioning. Berserker mode activated.
Chloe: Oh crap.