Hmm, in the last school year there was an incline next to the stairs (short stairs btw) with rails (like the kind on stairs) on it to accommodate the handicapped people, I liked to swing down those rails instead of using the stairs. Then one time I messed up and immediately fell down, I was scraped up pretty badly, it looked like you could see my muscles, I guess it did hurt a little but not much. Another thing is that in the same year I liked to jump down every step of the stairs, once on the last staircase I messed up and ended up falling flat against the stairs and sliding down, which oddly enough, didn't hurt at all.