But it was obvious, Caswell thought, settling himself grimly on the couch, that mechanotherapy was going to be far more difficult than he had imagined. -- -- -- -- -- The search for the missing customer had been brief and useless. He was nowhere to be found on the teeming New York streets and no one could remember seeing a red-haired, red-eyed little man lugging a black therapeutic machine. It was all too common a sight. In answer to an urgent telephone call, the police came immediately, four of them, led by a harassed young lieutenant of detectives named Smith. Smith just had time to ask, "Say, why don't you people put tags on things?" when there was an interruption. A man pushed his way past the policeman at the door. He was tall and gnarled and ugly, and his eyes were deep-set and bleakly blue. His clothes, unpressed and uncaring, hung on him like corrugated iron. "What do you want?" Lieutenant Smith asked. The ugly man flipped back his lapel, showing a small silver badge beneath. "I'm John Rath, General Motors Security Division." "Oh ... Sorry, sir," Lieutenant Smith said, saluting. "I didn't think you people would move in so fast." Rath made a noncommittal noise. "Have you checked for prints, Lieutenant? The customer might have touched some other therapy machine." "I'll get right on it, sir," Smith said. It wasn't often that one of the operatives from GM, GE, or IBM came down to take a personal hand. If a local cop showed he was really clicking, there just might be the possibility of an Industrial Transfer.... Rath turned to Follansby and Haskins, and transfixed them with a gaze as piercing and as impersonal as a radar beam. "Let's have the full story," he said, taking a notebook and pencil from a shapeless pocket. He listened to the tale in ominous silence. Finally he closed his notebook, thrust it back into his pocket and said, "The therapeutic machines are a sacred trust. To give a customer the wrong machine is a betrayal of that trust, a violation of the Public Interest, and a defamation of the Company's good reputation." The manager nodded in agreement, glaring at his unhappy clerk. "A Martian model," Rath continued, "should never have been on the floor in the first place." "I can explain that," Follansby said hastily. "We needed a demonstrator model and I wrote to the Company, telling them--" "This might," Rath broke in inexorably, "be considered a case of gross criminal negligence." Both the manager and the clerk exchanged horrified looks. They were thinking of the General Motors Reformatory outside of Detroit, where Company offenders passed their days in sullen silence, monotonously drawing microcircuits for pocket television sets. "However, that is out of my jurisdiction," Rath said. He turned his baleful gaze full upon Haskins. "You are certain that the customer never mentioned his name?" "No, sir. I mean yes, I'm sure," Haskins replied rattledly. "Did he mention any names at all?"