Another example of yesterday’s need of extreme sporters to constantly push the envelope, this is a video of X-Games gold medalist Red Bull skateboarder Leticia Bufoni performing the world’s first ‘Sky Grind’ at 9,000 feet out the back of a plane. I like how fast the skateboard just zips away into the sky. That hurt when it hit me, you know. Really did some damage. I’d sue for a lifetime supply of Red Bull too if I thought my wings would actually be able to lift this motorized wheelchair.