Until the ill-advised GM re-organization of 1984-5 into BOC / CPC, the Lansing MI plant was exclusive to Oldsmobile, always highly rated for product quality.
Many of the hourly workers were farmers in their off hours, or came from an agrarian background where doing a job well was its own reward - the plant usually audited near the top of GM's internal system.
Usually.
See, in the mid '50s, the Oldsmobile Ninety Eight model name was spelled out with individual letters. One afternoon, a bored, hostile and possibly intoxicated (WHAT?) assembler decided to re-brand the 98 as the Nighty Night.
The better part of an afternoon shift's work went out the door with the new naming strategy.
The next day, a trim supplier got a very urgent call to start making the Ninety Eight nameplate as a single item.
A shaggy dog story to be sure... as my father often said, "Detroit never solves problems, they just trample them."