But as anyone who has modified an off road vehicle (or been married to someone who has ) can tell you … if you replace one OEM part with a stronger one, then the next weakest link will break next time and usually with worse results than if the original part had just failed again. I would be more than a little nervous about what the next part to fail would be if I installed super-ligaments (exploding femurs anyone?)
Well, presumably the bulletproof skin would keep the exploding femur from scattering bone fragments everywhere. Then I’d just get it replaced with a nice titanium femur.