Pictures Of Bone Fractures How Is It Felonious Assault When Someone Is Hitting/pushing You First And You Break Their Collarbone?

How is it felonious assault when someone is hitting/pushing you first and you break their collarbone? - pictures of bone fractures

And his collarbone was broken as you think of when you imagine a broken collarbone, was a fracture of the clavicle without moving to what it means (there is no break, no bones that out), only a small crack ! I think it's ridiculous!