Close, once. I was hanging a stand for my father to hunt the next day. I was wearing my rock climbing harness and thought I had locked myself in "pole climber style" with a looped static line, but must have missed the loop and the beaner caught on the knot so it held when I tested it. I was in the middle of hanging the stand and, Thank the Lord, I had already attached the main strap. Suddenly the knot slipped through the beaner and I was falling backwards. I was able to catch the standplatform with my left hand and did a one-handed tarzan imitation. Was able to get back on my steps and climb down. The last joint of my middle finger was sore for a couple of weeks but that was all. God was watching out for me. Goes to show that even when you're trying to be safe unforseen things can happen. So always take as many safety measures as you can.