I didn't see what the big deal was. Back in 75, we had had a two-week session on sexual reproduction, like all the other subjects. Most of the kids there were already in couples, sneaking off to low-gee bounceataria and renting private cubes with untraceable cash-tokens. I'd even tussled with one girl, Katebe M'Buto, another exchange student, from United Africa Trading Sphere. I'd picked her up at her apt, and her father had even shaken my hand -- they grow up fast in UATS. Of course, I'd never let on to my folks. Pa would've broken an axle. "That's pretty disgusting, all right," I said, unconvincingly. "You want to go down to the river? I told Amos and Luke that I'd meet them after lunch." I didn't much feel like it, but I didn't know what else to do. We walked down to the swimming hole, where some boys were already naked, swimming and horsing around. I found myself looking away, conscious of their nudity in a way that I'd never been before -- all the boys in town swam there, all summer long. I turned my back to the group and stripped down, then ran into the water as quick as I could. I paddled around a little, half-heartedly, and then I found myself being pulled under! My sinuses filled with water and I yelled a stream of bubbles, and closed my mouth on a swallow of water. Strong hands pulled at my ankles. I kicked out as hard as I could, and connected with someone's head. The hands loosened and I shot up like a cork, sputtering and coughing. I ran for the shore, and saw one of the Allen brothers surfacing, rubbing at his head and laughing. The four Allen boys lived on a ranch with their parents out by the salt flats, and we only saw them when they came into town with their folks for supplies. I'd never liked them, but now, I saw red. "You pig!" I shouted at him. "You stupid, rotten, pig! What the heck do you think you were doing?" The Allens kept on laughing -- I used to know some of their names, but in the time I'd been in 75, they'd grown as indistinguishable as twins: big, hard boys with their heads shaved for lice. They pointed at me and laughed. I scooped up a flat stone from the shore and threw it at the head of the one who'd pulled me under, as hard as I could. Lucky for him -- and me! -- I was too angry to aim properly, and the stone hit him in the shoulder, knocking him backwards. He shouted at me -- it was like a roar of a wild animal -- and the four brothers charged. Oly appeared at my side. "Run!" he shouted. I was too angry. I balled my fists and stood my ground. The first one shot out of the water towards me, and punched me so hard in the guts, I saw stars. I fell to the ground, gasping. I looked up at a forest of strong, bare legs, and knew they'd surrounded me. "It's the Sheriff!" Oly shouted. The legs disappeared. I struggled to my knees. Oly collapsed to the ground beside me, laughing. "Did you see the way they ran? The Sheriff never comes down to the river!"