At the bottled water company I spent most of the 80s and 90s at, we started people off as temporary help, hired the best and threw the rest back into the street. Some times it took longer than others to figure out if the dude was worth hiring.
One day we got a temporary from Jawja who we promptly named Peach Pit. He clearly wasn’t the sharpest tool in the shed, but he was willing to work. We were concerned when he said he had to go back to school because he flunked the eighth grade, but were willing to put him on the night shift. He had reached the point of being given more responsibilities including filling out the daily damage report. He managed to spell ‘leaker’ L-I-N-K-E-R. We stopped wondering how he flunked the eighth grade and wondered how he passed the first seven. We also refused to hire anyone from Jawja for the next decade.