Immediately after two ducks finish a fight-they swim away in separate directions, flap their wings vigorously and then float around as if nothing has happened. Through flapping their wings, the ducks are able to release all the negative energy that was built up during the fight and they do it immediately. So, the ducks are able to revert to the calm state almost immediately.
Is it worth getting upset, hurt, angry or sad over? Is it worth hurting and upsetting another just to get your point across? If it doesn't hurt anyone, wouldn't it be better to just turn your back and leave the fight? And if it has already happened, wouldn't it be better to just be like the ducks, flap yours wings, clear all the negative energy and just move on?