I learn to apologise when I make mistake. And I apologise when I really mean it. I learn to forgive, as I dont accumulate tiny minute of unhappy memories to make myself suffer. Life is short, too short to waste time on hatred.
Why it is so hard for us to say sorry? Because we dare not admit our own mistake. In the process of covering our own mistake, anger normally supercedes our conscience.
Instead, I feel sorry for them. Because they dont' know any better.