Surprisingly despite there being 3 of us, aged 17-23, neither my brothers nor myself have ever broken a bone.
We've had lots of cuts though.
My younger brother did nearly break his nose though, when me and my older brother made him fall, and he fell face-first onto a hard wooden floor.
Doctors said it wasn't broken, but it did change the shape of his nose somewhat.
And also my younger brother nearly broke his little toe when he ran past and stubbed his toe on the bottom of a wooden bunkbed.
That's it though, bar my older brother breaking someone elses arm in a game of rugby.