I think this should make us each pause for a minute and think.
What if you were upset about something and then died? Is that how you would want to live your last moments… knowing that you were upset and angry? And would you want your being upset to be the last memory others have of you?
Seems to me, it would be better to resolve our issues immediately because we never know when our last day on earth will be. Why not leave this planet knowing you have resolved everything!