Disturbance of inner behavior enters a state of continuous imbalance. This is the psychological crisis, which can refer to the serious imbalance of the psychological state, the difficulty in solving the intense conflicts of psychological contradictions, the mental collapse or mental disorder, and the occurrence of psychological disorders. When a person has a psychological crisis, the person concerned may be aware of it in a timely manner, or it may be "unconsciously. " A person who thinks that he or she adheres to a habitual behavior pattern may also have a potential psychological crisis. According to the above definitions, Which of the following are not in the category of psychological crisis:. ["Fan Zheng's friend died suddenly, and he looked back at his friend with infinite emotion. For many days, Fan Zheng felt very distressed and extremely sad.", 'Although the smoking time of Zhu Xuelin is not very long, when he just quit smoking, he always feel abnormally irritable and confused.', 'Xiaoming was nervous when he heard that he was going to take an exam.', 'He Wei loves his three pet dog babies very much. When he travels abroad, He Wei misses his dog babies very much. Due to his anxiety, he has to go home alone halfway.']