While working as a coin press operator, a position I had no prior experience in, I was often criticized for not knowing how to perform maintenance on the Columbia Coin Press. During my time there, I received little to no training outside of learning as you go. An example criticism would be: the machine was mysteriously going into alarm mode. My supervisor had me talk to his supervisor (the guy in charge of repairing machines) and he said asked how often I added oil to the reserve oil. I had been working there for about 8 months, and had never been told of a reserve oil tank. Another time was when my machine was incorrectly feeding. This happened often, and it meant adjusting the different small parts on the machine. Again, I had received no training, and when I told the repair guy that I received no training he proceeded to tell me that I have no interest in my job and that I'm lazy and a slacker. He offered no training, he just fixed the problems as they came up and walked away. Later, when similar problems came up, he would say something like, "I already showed you how to fix this." (He hadn't)
But my job was really the only one that required any kind of training. The other jobs either don't work with machines, or work with very simple machines. And they have health, dental, and life. Plus, once you make it to the 90 day mark, it's practically impossible to be fired.