As if jumping out of a plane wasn't enough thrill, there's a new trend in Japan where people jump out of an airplane without having a parachute!
It's called Banzai Skydiving. What they do is parachuters throw the parachute out of the airplane first, then dive after it! Their hope is that they can catch it, put it on and pull the parachute before they die.
This dangerous sport was highlighted as one of the crazy things people do to get on the Guinness World Records. The editor decided to keep it in. The Guinness World Records will reject records that endanger people other than the record setter. They decided that this only endangered the parachuter.