I have be hurt at work before. We had no milk in Dairy so when the skids came in it was just me and the cartons were stacked 7 tall and really heavy. So I got a ladder and started unloading the skid. I was on the third stack when i lost my balence and I fell into the metal rollers I really hurt my shoulder. This could have been prevented by getting someone to help me or me unloading slower. At walmart its called Work Place Saftey.