Robinson Crusoe on Mars

[Weltall]

That's not accidental, though...you still had the drive and the will to save that baby. Now, if a baby inadvertenly fell from the sky and somehow landed in your hands in a way to save its life, that ain't no hero. That's just one extremely lucky man.

If he catches the child and saves it's life, regardless of whether he had the conscious intent to save a child's life, he's a hero. If he were not there, the child would die. It's luck on the child's part that someone's there to catch him.

I don't agree that unless someone actively tries to be a hero, they can never be one. To me, a hero is someone who accomplishes something great... regardless of whether they knew it was coming. If someone saved my life completely by accident, I would consider them a hero for doing so. I could never tell them "you were no hero, you just got lucky," because I'd be dead if they weren't there.