For the Sake of Harmony Healey took a walk. He went down to the bar for a slug of tequila. The bartender mixed him a couple of atomic-busters and he took a fresh grip on himself and went back to the bridge. He told the Old Man about it, but Pickens wasn't so young any more. He refused to be startled by anything. Lieutenant Browne (who had been Ensign Browne) was elated. "Maybe," he said while Mr. Zytztz was standing before a porthole across the room, "maybe our vegetarian friend could dig up some numbers for me when we get to Mars." Mr. Zytztz revolved half-way on his stalk. The lieutenant's mouth opened a full six inches. Mr. Zytztz's leaves dipped gently and lifted in what seemed very much like a smile. "Yes, Lieutenant," he said in his fuzzy voice, "I know some very hot numbers back home." Then his leaves seemed to droop for an instant as if he was sad, and he turned back to the porthole and faced the constellation Vela. Browne swallowed and Healey said drily, "Down the hall to your left, Lieutenant, and tell Joe to put them on my bill." Browne stared at him and then said, "Yes, sir," saluted stiffly and went out almost on the double. A soft rustling came from Mr. Zytztz. "Impetuous, isn't he?" he said without turning around. "He's just learned," Healey said, "that his mother-in-law is an angel." "Sorry," murmured Mr. Zytztz, and then he turned to Healey hesitantly. "Don't you think those religious concepts are a little outmoded?" What could you do with a precocious four-year-old who would insist on exposing the fallacies of the stork story? That's what Healey did with Mr. Zytztz—nothing. "Look," he said. "I'm sorry about that. I was just trying to be funny." Mr. Zytztz's leaves were still for an instant, and then they moved sharply and they crackled for all the world like laughter. "Oh, I think you're very funny," he said softly. Healey took a deep breath and went over to write up the orders of the day. He looked up once to see Pickens watching him, and the admiral kept his face straight except for a crinkle at the corner of his mouth.