It wasn't much really. I was carrying a radiator at work, something I did for a living so it was normal. Somehow I twisted the wrong way & ended up on my back with the rad on top of me. I managed to slip 3 disks in my lower back. I was off work for 4 months but I ended my 'career' myself. Prior to my going off sick with my genuine injury we had a long running debacle with one of our drivers who not only claimed he'd twisted his knee at work but was sueing the company because he hadn't been adequately taught how to use cling film. Yup, not kidding. I was working with him at the time and nothing happened, he just didn't show for work the next. Nor any of the next 9 months. He was regularly seen in the pub though, no problems there.
Anyway, there was a sense that I was also at it. At least that's how my line manager saw it. Not that I tried to claim anything, not my style. It was my own fault. So I quit. Best thing I ever did because I had time to find work that I was valued for.