What is the worst injury you have ever gotten?

Mine was when I was 14 years old ( currently i am 17) and I was going down this cement slide called the alpine slide.a href="http://www.presidentsslide.com/images/slide250.jpg" rel="nofollow"http://www.presidentsslide.com/images/sl…/a (that's a pic of it) anyway.. I was going about 60mph on one of the bend and my sled slipped right from under me and my face smashes into the concrete so hard that i'm knocked out for two days.. I got a cracked skull... broken arm... cut up body and legs.. it was horrible... anyway WHAT ABOUT YOURS???