My dad was playing football (soccer) about 10 years ago. One of his friends tried to hit the ball, but kicked my dad's leg. Some people say they heard the bone break. It was his tibia (I'm not sure if it's called "tibia" in English - it's the longest bone in the body).
Two other friends rushed him to the hospital. The doctor put the cast on so quickly, it was put on wrong. A few weeks later, the dr. found that out, and, this time, put it on the right way.
But because of the first wrong, my dad was in cast for
8 months. If it was 9, I wouldn't be here writing these

.
Oh, and I once fractured my wrist. Fell on it 3 times in a week. The first hurt like crazy. The others weren't that much, but I had to stay in cast for 3 weeks.
My bro fell out of bed and broke his elbow. And once I fell on my bro, and I broke his shoulder.
That's all.