I have seen some guys "downfall" a route. They had found Fossil Rock on their own, got some carabiners and a rope somewhere and would lead a climb on single biners then when they got to the top they would hang on, unclip, and drop off. They thought this was fun! We showed them how to thread thru the chains and lower and explained how all those falls were hard on the rope , the bolts, their harnesses and their bodies. I think we eventually convinced them.