I have only broken two bones in my life.  Actually only one, but broke it twice.  Left little toe.  I suspect that I have super strong bones or something.  A couple of years ago I was dragging a RR tie by one end, walking backwards.  I tripped, fell backwards, the end of the tie came down on my right shin, ripped all flesh from the leg, down to the bone, a strip about 1.5" wide and 15" long.  I would have expected a compound fracture.  Neat scar tho...
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OBG