I once watched a single loose screw in an old hydraulic press. The piston rattled, the pressure sensor got off by a few percent, and the entire batch of parts started coming out with a slight warp. It was nothing that drew attention at first, just a little wobble in the frame, but the production line slowed down until we found the culprit. In my line of work—whether it’s fixing a machine or debugging code—I always keep an eye on those tiny inconsistencies. They’re the ones that can bring the whole system to a grinding halt.