My girlfriend and I use to do that when were were six and seven, ride around on our bikes and try to "accidentally" fall off or get hurt.

I wouldn't do it; the attention doesn't last that long and the pain/aggravation wouldn't be worth it to me; you still would have to get around, it's going on summer and the cast would be hot, itchy, and sweaty and you'd have doctors appointments and rehab after you got the cast off, practicing walking on it again and your leg would look a different color and too skinny next to the other one, etc. You wouldn't be able to hang out with others and you'd always be looking for a chair and your underarms would get sore from the crutches. . .

My husband had a cast on his leg up to his hip when he was 16 and almost didn't walk again (and we're talking a year later) being able to control how the leg broke, how serious or any complications would be almost impossible and you'd have to know there was someone around to help right away and people might learn that you broke it on purpose and be angry and think you only did it for attention :-) and decide you didn't deserve any?

Definitely come here instead for attention.