dude, there's a girl on my water ski team like this. she'll take a fall that is absolutely laughable and scream bloody fucking murder, be out for a week or two, and whine about how hurt she is the entire time. (I've concluded that she does this solely for the attention.)
meanwhile i dislocated my shoulder plus tore a few muscles, and then swam to shore with one arm from the middle of the river. Then I competed in our national comp a week later (against the doctor's orders). It was not the best idea ever, and every last second of it was excruciatingly painful. But we placed third, so it was worth it to me.
i'm not trying to sound tough, or sooooo hardcore, but you can't cry fucking wolf every time you get a bump or a bruise when competing in a physical sport. there's a difference between a legitimate injury and someone whining for attention. obviously shit happens and bones break, muscles/ligaments/tendons tear, you get knocked unconscious, etc.. But if you're injury doesn't require immediate professional medical attention, then man the fuck up.
there's no way that all of you haven't had someone like this on a team, or known someone like this in your life. (Unless, of course, you're still pretty young in which case you'll come across one eventually.) Fortunately, most of these people get weeded out of physical sports in the long run.
holy long post....