Uniform of a Man

After rescue, revenge was uppermost in Chet Barfield's mind; the hideous, bestial Agvars had to be taught a lesson they'd never forget. His rescuers seemed to disagree, however—until Chet learned his lesson too!
In the village clearing, under the diffuse red sun of Hedlot, Chet Barfield listened intently. Mostly he heard the villagers, the Agvars, noisy with the disregard for sound that comes of defective hearing.
But above their clamor was another note. No ... Yes! There it was again—the swish-roar-scream of a spaceship!
Chet's heart lifted to the altitude of that ship. Rescue! Rescue was at hand for him, after three years as a prisoner.
Thought of it momentarily overcame the passivity that years of starvation had made his habit. He even forgot himself enough to walk erect a few steps, staring skyward—heavenward!—within cupped hands.
But the dense hardwood chain on his ankle brought him up short. When it tightened, he remembered, and slouched to all fours again, moving with the gorilla-like gait of the Agvars toward the unshaded post he was chained to.
He'd been observed. Pawfulls of dirt stung his bent and whip-scarred back, and a treble chorus stung his ears and nerves. The village boys were chanting derisively. Chet had never been able to learn the language, but the tone of voice was unmistakable.
He huddled against the post, knees to chin, hands clasped around his matted hair, awaiting the inevitable sticks and slops. He heard the children's voices fade as they scattered throughout the village of haphazard lean-tos in search of especially sickening things to throw. For a few minutes, then, he'd have a breather. But not for long—they wouldn't forget....
No. But the fellows hadn't forgotten him, either. He could stand this for a day or two more. A week or a month, even. It didn't matter. This would end—soon.
His turn would come! He'd make these devils suffer as he had suffered. He swore it!
He was glad he'd stayed alive for this. It had been a fight to live, a struggle he'd often thought futile while he made it. Learning to eat whatever he could get, training himself to breathe the local atmosphere in the special rhythm its composition required, accepting degradations too cruel for a captive animal, avoiding the resistance that would have brought merciful murder.... All that, yet it felt strange, now, to be so glad he was alive.