Speaking skill, persuasion need to be cautious

Persuasion is a technical job, it is not easy to persuade, it is not good to persuade, it may also lead to the upper body. Therefore, in the matter of persuasion, we must not blame people for their protection. However, there are always some kind and honest people who are righteous. They decide to take care of other people's business affairs when they are in the midst of a thousand miles. Many of them do not know the consequences of persuasion, but they are worried that the consequences of not persuading are more serious. Worried is that if the small couple next door quarrel, they want to persuade but did not persuade, what should they do if they fall?