What is the best way to persuade grandma not to let her work?

First, don't keep on persuading, keep saying, can only make the old man resentment; Second, you can use some practical examples to pretend not to mention, and gradually change the old man's view; Third, the conditions can find the old man more convincing to persuade; Fourth, change the persuasion skills in the old man in a good mood to say; Fifth, think of ways to let the old man know that do not listen to persuade the children and grandchildren to be unlucky.