Think before you act: A story

Found this fable on the interwebz:
A boy was constantly getting into trouble. His father told him from now on instead of punishing him every time he got into trouble he was going to put a big nail into the barn door, so he could see just how often he was bad. At first the boy liked it, NO PUNISHMENT WOO HOO! The nails started to add up. Soon every time he looked at the door with all the nails he would feel ashamed knowing everyone could see it too. He asked his father to go back to the old way. His father said from now on when you do something good I will remove a nail. The boy worked very hard at being good and when he was down to the last nail. the boy looked and saw all of the holes and was sad. His father asked why the sad face? He said all the nails are gone but the holes are still here. His father explained to him they are Scars. whenever we lie, cheat, steal, hurt someone else or do wrong in any way it's like driving a nail into that spot. No matter if we make amends and are forgiven there is still going to be a scar. You can cover it up and hide it, but it's still there. We should all think before we act because once the nail is driven in there will always be a scar.