So, I'm a freshman at my high school and have met with our activities head on the subject of creating a parkour/free running club. (I know they are different, yay!) Anyways, he likes the idea but his primary concern is (take a guess) safety. I explained that when done properly, it is no more dangerous than football. He said if I can find a way to make it safer, or ensure the safety of participants, he'd be glad to allow it. Any ideas on how I can convince him that it will be safe/make it safer?