There were still two hours of his rest day left when Conrad Manz realized that Bill Walden was again forcing an early shift. Conrad was in the middle of a volley-tennis game and he didn't like having the shift forced so soon. People generally shifted at their appointed regular hour every five days, and a hyperalter was not supposed to use his power to force shift. It was such an unthinkable thing nowadays that there was occasional talk of abolishing the terms hyperalter and hypoalter because they were somewhat disparaging to the hypoalter, and really designated only the antisocial power of the hyperalter to force the shift. Bill Walden had been cheating two to four hours on Conrad every shift for several periods back. Conrad could have reported it to the Medicorps, but he himself was guilty of a constant misdemeanor about which Bill had not yet complained. Unlike the sedentary Walden, Conrad Manz enjoyed exercise. He overindulged in violent sports and put off sleep, letting Bill Walden make up the fatigue on his shift. That was undoubtedly why the poor old sucker had started cheating a few hours on Conrad's rest day. Conrad laughed to himself, remembering the time Bill Walden had registered a long list of sports which he wished Conrad to be restrained from--rocket racing, deepsea exploration, jet-skiing. It had only given Conrad some ideas he hadn't had before. The Medicorps had refused to enforce the list on the basis that danger and violent exercise were a necessary outlet for Conrad's constitution. Then poor old Bill had written Conrad a note threatening to sue him for any injury resulting from such sports. As if he had a chance against the Medicorps ruling! Conrad knew it was no use trying to finish the volley-tennis game. He lost interest and couldn't concentrate on what he was doing when Bill started forcing the shift. Conrad shot the ball back at his opponent in a blistering curve impossible to intercept. "So long," he yelled at the man. "I've got some things to do before my shift ends." He lounged into the locker rooms and showered, put his clothes and belongings, including his pharmacase, in a shipping carton, addressed them to his own home and dropped them in the mail chute. He stepped with languid nakedness across the hall, pressed his identifying wristband to a lock-face and dialed his clothing sizes. In this way he procured a neatly wrapped, clean shifting costume from the slot. He put it on without bothering to return to his shower room. He shouted a loud good-bye to no one in particular among the several men and women in the baths and stepped out onto the street.