20 feet doesn't sound like much, but then again most suburban roofs are no more than 20 feet high, in most cases lower. Imagine jumping off the roof of your house onto something solid. I'm just surprised he only broke his ankle.
33? This is something I'd expect from a 19-year-old.
When I was 14 my one of my buddies and I lived in a highrise.....We would climb off his balcony on the 14th floor and swing balcony to balcony until we reached the 8th floor were one of our other friends lived......
It's amazing we survived....