"So did I, for awhile," Ron nodded grimly. "But it's been bugging me, so Hermione encouraged me to go to a Healer and get it checked out. They found that I'd broken my shoulder as well as dislocated it. The shoulder got back into its socket fine, but the fracture in the bone fused and healed all wrong. With that kind of prognosis, I doubt I could pass the annual physical."