Its been well documented that in wars,
minor injuries and a soldier next to them can survive massive injuries. It seems to be a combination of mental attitude and how a man experiences pain that make the differences in how injury and pain are handled.
No way to know before it happens, which men can handle that level of pain and damage and which can t. Unless a man is gradually testing his limits. Even then, one miscalculation and who knows how that next higher level will affect him ?
Reading about contests to see how much weight men can lift that is tied to their penis only or balls only, one comment was that the only way to know that limit would be for a man to exceed it and lose his penis or balls doing it. Ouch ! Risky way to find each man s individual limits of each organ !
Short of that, it is always the risk of going too far and losing.