Recently, I was talking to a safety consultant who told me about a business he visited a while ago that had staff handling pieces of wood with multiple nails sticking out, while not wearing gloves.
Every day these employees were constantly subjecting their hands to pain, yet, no-one complained.
What's interesting about human behaviour is that when we are in physical pain the body will learn to adapt and avoid it.
Think about the last time you had a sore tooth. You automatically started eating on the other side of your mouth.
In this company where people were ignoring the daily pain of work, they just got used to it because everyone else was doing it and nobody protested. Management was okay and would have been open to suggestions (provided enough people let them knew of the issue).