with car audio, I just get little nicks and cuts on my hands. But when I did tile work, I have almost cut my finger off, Droped a huge heavy *** tile on my toe when I had my shoes off and the corner hit my thumb toe and it was purple then black, then the nail came off. I was angle grindin a curve cut and the **** thing caught on my arm and ran all the way up it. Those are some of the worst I had. I ****ed up my shoulder really bad carying something really heavy and somehow poped my shoulder wrong and it came out of place. I poped it back in, but it still hurts till this day.