Saying these 2 words I'm sorry.
We take this for granted as most people feel they have all the time to say these words.
However time will not stand still. We may not get anotheropportunity to say these words so say them as soon as you can as tomorrow may never come.
Then all you will have is regret.
So say I'm sorry as soon as possible and mean it before it's to late to say it.