Silence is a weapon of defense. Situations in which you need to observe silence include;
When you are highly provoked and angry
When you are ignorant about an ongoing discussion
When in a company of fools – because you first made a mistake being among them
When you are being corrected for an error or a mistake done
When a person in a position of high authority raises a hot argument against you
Being silent can preserve your dignity, worth and image.
Harry A.-A. Mante.