Ten pairs of boots. One pair escaping, nine chasing. The chasers closer. Closer. Built in navigation, fly by wire muscles. Thirty hour days; six extra for street cleansing. You need some luck not to be cleansed. Did central programmers include a luck utility function when those first AI installations were tested? It seems probably not. Ten pairs of boots. One tiring. An alley opposite a brightly lit neon sign hanging over a Sino cafe. No point hiding. The first felt the worse. The second was the best. The third knocked unconscious. They are trained not to kill, but to instill.