This is not to me but a friend of mine was climbing Mt Fuji in _winter_ (this is a serious thing you need to be prepared for, alpine climbing with lots of snow and ice) when he slipped and started sliding down the mountain out of control.

When he was about to fall to his death a father and son that happened to be there in a struck of luck managed to grab him and save his life. My friend had banged a few rocks in the way down so his leg was fractured and they had to help him down for hours.

They saved his life and risk theirs to ensure he had the best chance. They visited my friend in the hospital where he was grateful and teary eyed. And then the father and son asked him for money, straight up. My friend of course agreed on an amount to them, all in all, he didn't know how to repay them anyway and this was oddly simple. I found everything heroic and strange at the same time but a good story.