Those PTO’s will kill you in a dozen different ways...none pleasant......
I used to use the loader to put large round bales in the feeder out in the pasture/feedlot. I had to get off the tractor to cut and remove the twine. I left the tractor running. Eventually the sheep got so used to the routine they would surround the tractor in anticipation of fresh feed. One of my ewes got her wool snatched on the PTO splines. It pulled her in tight and spun her like a rag doll @540RPM. It took a half hour to cut her out. She survived.