"Occasionally unreliable," Quatre commented. "For the most part, very reliable. We have actually had an occasion where abilities have been used against others."

He paused for a moment, not really liking remembering this.

"One of the new arrivals at the time, he killed a girl that he knew from home. She came back as one cannot actually die on this train. Apparently someone else found out he had done this and attacked him, trapping his mind in some... world that was not good. The medic and several others were able to save him and he seems to be changed for the better, but... it was disturbing."