At every factory or warehouse I've worked in, the cause of almost every injury/accident was an employee not following the rules when it came to safety.
In most places I've worked in, you've both been told the safety rules and then encouraged to do things in ways that aren't safe. The most common way of doing this is to not give employees enough time to actually do the safety stuff. If you get caught, well... OF course you got hurt, you weren't following the safety rules. Were you on drugs?
In the blue collar jobs I've worked, there was always a lot of pressure from management to do everything faster. They won't outright tell you to violate policy, of course, but if you don't meet their expectations they'll find someone who will.
