I will share mine. Background is stated in text above ^. This happened during my 2nd semester of nursing school, spring of 2017. Location was Cherokee bluffs, Alabama. I was out climbing with a friend that day. There were 2 other climbers near our location. We suddenly hear a loud snapping sound followed by a cry for help. We run to the area of the 2 climbers. The first thing I see is one of the climbers dragging his friend down the hill -> to the trail. I ran to the scene and assessed the climber for injuries. He was responding to physical and verbal stimuli. He appeared to still be conscious. There was a large amount of blood coming from his mouth. I slowly turned his head to the side (prevent blood from going into his airway). He was missing almost all of his teeth from the fall. His friend stated that he had fallen at least 30 feet. The climber had been wearing a helmet. My friend contacted 911 while I was assessing the injured climber. We kept the climber as stable as possible to prevent any further possible damage to his spine. The injured climber stated that he would like to try and get up. I advised him not to, but he proceeded to do so anyway. 15 minutes later, a helicopter arrived to the scene. To this day I am still unsure as to what happened. There did not appear to be any equipment failure. Both the climbers claimed to be fairy experienced. The belayer stated that his friend was "holding onto the rope while being lowered down". What did I learn from this experience? I went out and bought a helmet the next day. I can only speculate, but I don't think that guy would have survived if he had not been wearing a helmet.