"They've been saying that for a hundred years," Carrin said, "and they still haven't gotten around to doing it." "They will this time." "Why would you want to go to Mars?" Leela asked, winking at Carrin. "There are no pretty girls on Mars." "I'm not interested in girls. I just want to go to Mars." "You wouldn't like it, honey," Leela said. "It's a nasty old place with no air." "It's got some air. I'd like to go there," the boy insisted sullenly. "I don't like it here." "What's that?" Carrin asked, sitting up straight. "Is there anything you haven't got? Anything you want?" "No, sir. I've got everything I want." Whenever his son called him 'sir,' Carrin knew that something was wrong. "Look, Son, when I was your age I wanted to go to Mars, too. I wanted to do romantic things. I even wanted to be a Master Repairman." "Then why didn't you?" "Well, I grew up. I realized that there were more important things. First I had to pay off the debt my father had left me, and then I met your mother—" Leela giggled. "—and I wanted a home of my own. It'll be the same with you. You'll pay off your debt and get married, the same as the rest of us." Billy was silent for a while, then he brushed his dark hair—straight, like his father's—back from his forehead and wet his lips. Billy "How come I have debts, sir?" Carrin explained carefully. About the things a family needed for civilized living, and the cost of those items. How they had to be paid. How it was customary for a son to take on a part of his parent's debt, when he came of age. Billy's silence annoyed him. It was almost as if the boy were reproaching him. After he had slaved for years to give the ungrateful whelp every luxury! "Son," he said harshly, "have you studied history in school? Good. Then you know how it was in the past. Wars. How would you like to get blown up