It is quite common now a days the so called big bosses will use words very little but they will never forget to use at least one word which will hurt the other person. Once we know the nature we will ignore them.
As mentioned by author some good people keep quiet even though the other person makes some unwanted remarks. But a good man should never use bad words at others especially without any fault of them.
I have also experienced some people of this nature. What to do, all in the game.
When people come at you with their worst, you should come at them with your best (advice given to Selena Gomez by her mother, quoted in Time magazine.)