However, I think that you only really learn how brave you are until you find yourself facing an unexpected mountain and then find a way to conquer it.
I just loved this post from downunderdocs so much that I had to link to it. I hope they don't mind.
It shows great insight and honesty, and is also a warning for those about to embark on medical studies that it isn't all beer and skittles.
It might have been a scarring experience, but I have a strong hunch that the author will be a much better doctor because of it. :)