Youth by Isaac Asimov

It was too bad. They had landed twice before in the scout-ship. They had established contact with the natives who were grotesquely huge, but mild and unaggressive. It was obvious that they had once owned a flourishing technology, but hadn’t faced up to the consequences of such a technology. It would have been a wonderful market.

The Hanging Stranger by Philip K. Dick

The Commissioner nodded. “Yes, they undoubtedly had escaped, as you did. Freak accidents. But the rest of the town was firmly in control.” He turned from the window. “Well, Mr. Loyce. You seem to have figured everything out.”