I've witnessed trouble on Nailbox. After climbing on Discovery, we came around the corner to Nailbox with a guy hanging from the rope about 40' up with a compound leg fracture. Somewhere between 88-92. Big John from San Jose he said. He only fell 15 to 20 feet but snapped it on a ledge or protrusion. Partner, Little John, was freaked out so I tied in and lowered him into the poison oak. Guy was a tough bugger, never whimpered or moaned. Rangers were there in about 15 minutes. Somewhere, I have shots of that on slides, I'll see if I can dig them up and try to get it on here.