A fool shows his annoyance at once, but a prudent man overlooks an insult (v16).
Life is not about winning every skirmish. Wisdom is not always found in pursuing what is 'right' or 'fair'.
Sometimes it is better to be wronged for the greater good - when in dispute with people I have yielded my rights and kept the peace.
Sometimes I have been badly treated, only to be asked for help by the same people - and by overlooking the insult, I gained friends.
I don't always get it right. When I am annoyed, my wife knows it immediately, which in itself is very annoying.
Sometimes it is really hard to overlook an offense ... I can't move forward and so need to talk it through face to face.
Nevertheless, it is better to bite our lips and extend grace, than show our annoyance and risk being thought a fool.