The chances of me getting eaten by a shark while surfing are slim. The chances of me getting pounded by a wave while surfing, that happens all the time. Fortunately I've never had a wipeout as bad as the guys in this video.
Surfer Magazine posted the video for the Worst Wipeout of 2011 poll. Check out the first wipeout from Evan Faulks. That's the kind of hit that puts you in the hospital. The ocean is a wonderful place, but it will mess you up if you're not careful.