You have to be very careful about what happens again and again. There is a certain truth to the saying that "nothing is too much" and we must grasp this law well in interpersonal communication. For example, you can't go too far in joking with people, the first time others can still smile at each other, the second time may barely cope, the third time may be about to change face, and even turn against each other. The (Wolf is Coming) quote illustrates this vividly. For example, when doing things with people, we must pay attention to the constraints of "three", and if one thing is not accomplished three times, we must be particularly careful. A person's mood has a process of deterioration, and once these "three limits" are exceeded, the accumulated bad emotions are likely to break through the valve of the rational and do irreparable stupid things. A person who is fooled once can still endure, but if he is fooled by others again and again, he will definitely fight to the death. [Cute]