What are you, a sado-masochist?
About 10 years ago, few months after I had knee surgery, I was out on my roller blades. I came to a hill, and debated a while. Should I try it? It's pretty steep. Oh what the hell, it's not that steep. I went speeding down the hill, lost control, knew I was going down, knew I had to protect the knee, so I went down on my butt. I skidded down that hill on my ass and when I got to the bottom and stood up, my shorts were shredded and so was my ass. The knee however, was fine. I got back in the car, drove to my mom's house because she was nearest to the park. The evening was spent having my mom and her neighbor pull gravel, twigs, fabric and leaves out of my ass because I wouldnt go to the hospital. I cant imagine putting newskin on something like that!