My worst injury was from body surfing, when I got dumped onto a sandbar. I stood up in about 10cm of water after breaking my colarbone and tearing all the ligaments in my shoulder.
Been there done that, no broken bones that time though, but i needed surgery to fix up the rooted ligments n tissue. (right shoulder)
I also fell out of a window playing on painters scaffolding and ripped a hole on the inside of my right elbow with the window catch about 6cm diameter. (i was about 10 and it has since completely recovered except for a slight numb spot)
Im a BMX dirt jumper and my list of biking injuries go like:
1 x right side clean broken collarbone (nosed the backside of a landing and flipped)
1 x right side fractured collarbone (nosed another landing, cracked the same place that had healed, it had only been 6 months tho)
few concussions mainly from those 2 collar bone stacks where i landed on my shoulder/head
9 stiches in my arm from a nasty sharp rock
2 large gashes in my left leg along the shin bone that couldnt be stitched so butterfly stripped.
countless smaller pedal bites and grazes
So after all that my right arm aint too happy
Still have great funtion of it luckily, lost a small bit of rotation in my shoulder though and a few numb spots from severed nerves
I wear knee pads and shin guards now, they have got to be one of the best investments i have ever bought, they have saved my legs from so much pain it isnt funny