answer: #Person1# tells #Person2# not to criticize #Person2#'s son in front of his friends.
documents: #Person1#: You should not have criticize your son in front of his friends.
  #Person2#: Why? He did something wrong.
  #Person1#: I know. But at that time your blame is rubbing salt into his wounds.
  #Person2#: I only wanted to help him.
  #Person1#: But it is not the right time.