I don’t know how true this is, or remember where I read it, but the toughest guy I’ve ever heard of was a soldier in the Rhodesian Light Infantry. He was on his final exam for the Rhodesian SAS (I believe it was “D” Squadron of 22SAS). He was dropped by Puma helicopter way out in the bush with his personal rifle, a compass and some dried meat. On the final leg of his journey he was gored by an elephant. He managed to patch himself up with whatever he was carrying in his kit and marched back into Salisbury. Instead of making a beeline for the nearest hospital, he made for the nearest pub.
My relatives revealed to us that my father was a pretty tough dude before my mother tamed him.
In WWII England, he got into the a bar fight with a man who pulled a knife on him. A broadly built six-foot-four inch street thug before the war, Dad got the knife away from the man and when the MPs arived, they saw him perched on top of of the guy, taunting him with the knife.
Dad took off out the side door and down the street into a dark alley, where he knocked out the four MPs who were chasing him.
Of course, his captain had to hide him from the MPs once they came looking for him.