I have seen in the videos most people breaking their arms trying to perform deeds of sports such as rail skating, bicycle stunts, and skate board stunts. Then it comes the motorcycle accidents.
On the Lighter side:
However, if you are the one with the broken bone, I doubt you will consider it a popular idea to ever repeat. Let's call these "more common" ways to break an arm instead of "popular" ways.
have whoever says with you hide (as well as you) , then you leave a note saying "join us!" or "the dead wish you wecome" or something like that , and if you have a cut (do not cut yourself to do this...