Or didn't your world have any sciences, Dave Hanson?"  Either the five months under his uncle had toughened him, or the sight of the bulldozer falling had knocked him beyond any strong reaction.
The terrible things he'd seen with his uncle had made him less sensitive.
mnli hypothesis: The terrible things he'd seen with his uncle had made him less sensitive. premise: Or didn't your world have any sciences, Dave Hanson?"  Either the five months under his uncle had toughened him, or the sight of the bulldozer falling had knocked him beyond any strong reaction.