A boater used rope from his vehicle as a makeshift tourniquet after an alligator grabbed a swimmer's arm in Florida's Silver River and pulled her underwater.
https://www.foxnews.com/travel/boater-scared-off-alligator-used-rope-stop-bleeding-florida-woman-lost-arm
https://www.foxnews.com/travel/boater-scared-off-alligator-used-rope-stop-bleeding-florida-woman-lost-arm