It is very dangerous and requires caution to quickly subdue the opponent in an emergency. The following are some principles and key points, but please note that if it is not necessary, try to avoid taking direct subduing actions to avoid unnecessary injuries and legal risks: 1. **Keep calm**: Don't panic, think clearly about the situation, and avoid acting impulsively due to nervousness. 2. **Assess the situation**: Determine the threat level, weapon conditions, environmental factors, etc. of the opponent to determine the response strategy. 3. **Try to avoid escalation of conflict**: Try to ease the situation through verbal communication and other means, and don't easily anger the opponent to cause more intense confrontation. 4. **Use the environment**: Look for objects that can be used as tools for defense or control of the opponent, such as tables, chairs, railings, etc., and pay attention to safe retreat. 5. **Target vital parts**: If you must take action, you can try to attack the opponent's eyes, throat, abdomen, crotch, etc., which are relatively vulnerable and can effectively make them lose their resistance. 6. **Use joint techniques and control movements**: For example, limit the opponent's actions by locking joints, but make sure not to use excessive force to cause permanent damage. 7. **Multi-person collaboration**: If you have a companion, cooperate with each other to distract the other party and increase the success rate of controlling the other party. Emergency situations are complex and changeable. Safety should be put first in any action. Afterwards, you should communicate with relevant professional organizations (such as the police) and explain the situation in a timely manner. If you lack sufficient training and experience, it is not recommended to try to subdue the person on your own.