Not in my workshop but when I was 17 while at work in the machine shop. I just pulled a steel plate off the CNC mill and set it down on a pallet where the next plate was standing on edge. While I was removing the sling from the plate I just set down, the one on edge started to fall over. To this day I have no idea why I thought I could catch it in time to keep it from slamming down on the freshly machined piece, but I did. Well, my hand did break the fall and in the process my middle finger's knuckle landed directly on a 1/2" freshly drilled hole. If memory serves me correctly, these plates were about 15" x 25" x 2" thick so you can imagine the outcome. I immediately wrapped the finger in a shop towel and was taken to the ER for stitches. I remember the doctor showing me what a knuckle and tendons looked like as he lifted the flap of skin so he could pick out the loose cartilage.