Ways someone becomes a hero...

In the episode of "Merlin," Prince Arthur stepped up to defeat the Black Knight.  I believe that he was a hero to the people of Camelot, not only because he was the prince, but because he was also brave.  I also believe that Uther was a hero because he stepped up and took his son's place in the fight.  He not only fought the Black Knight, but he defeated him.  This makes him a hero to not only the people of Camelot, but his son as well.  I think that anyone can be a hero at anytime.