A fight broke out on a Phoenix light rail car. It looked like two guys were ganging up on one. And they would have gotten away with it, but then Subway Ninja (or should we go with Subway Samurai?) jumped into action, unsheathing his sword and slowly backing the aggressors off the car.
Let that be a lesson to you hooligans out there. You never know where Subway Ninja is lurking. He could pop out of anywhere at any time. As soon as his sword leaved its sheath, it must taste blood.