Until we know more than one fact of a person’s life, we can not judge fairly the value of their heroism. A hero must be self-disciplined and be dedicated to certain values. Oftentimes someone in his life has been a role-model. At other times an event has made a strong impression on him be it a lynching, a fear of fire, or seeing a helpless child or animal in distress.
Some heroism is sparked by disaster, some by a desire to effect change, and some by just deciding to stand up and be counted. Quite often heroes become so by circumstances – shipwrecks, floods, avalanches etc