human
You know those poor operators are supposed to log any reading over sixty, and report downtown with anything over eighty. Sure they are! If they logged everything over sixty they'd have writer's cramp the first hour they were on watch. And believe me, Sonny, any operator who reported downtown on every reading over eighty would be back pounding a beat before the end of his first day. They just do the best they can, and you'd be surprised at how good that can be.