Personal update: For those that don't know it, my step-father has been going through an ordeal recently. Over the years he has been a national champion diver, played professional football, been in the Navy, and worked as a fireman. Among the physical problems that have manifested themselves, an x-ray found a broken neck that had healed incorrectly (a broken neck that was never diagnosed or treated), knee surgery, back surgery, and both hips have been replaced. While trim and fit in his youth, he has been well into the obese category for years. Standard lifetime of a hip replacement is 10-15 years, with increased wear and tear with increased weight. One hip has already been replaced twice, the other only once, and now they are both going bad again. The first hip replacement began a little over a year ago, and resulted in problem after problem. I don't remember everything in the correct order but: Staff infection, stabbed in the hip with a dirty needle, kidneys shut down ca...