It is human instinct to protect oneself in an emergency, but we strongly recommend that peaceful settlement and legal means be prioritized in any conflict. The following recommendations are only applicable to extreme cases of self-defense and must comply with the relevant provisions of the laws of the People's Republic of China： 1. **Legal principles**： -According to Article 20 of the Criminal Law, self-defense must be carried out "when the illegal infringement is in progress" and does not exceed the necessary limit. -All means of defense must target immediate threats, and the use of force afterwards may constitute a crime. 2. **Rational use of environmental items** (subject to the principle of proportionality)： -Shelter: Use obstacles such as tables, chairs, counters, etc. to maintain a safe distance -Warning tools: whistle, mobile phone (emergency alarm), etc. to send out a distress signal -Daily necessities: unopened bottled water can be thrown to interfere, and backpacks can be used as temporary shields 3. **Professional advice**： -Calling the police immediately is the first choice -Participate in disaster prevention and mitigation training certified by the public security department -Learn the knowledge of risk aversion in the "Citizen Safety Prevention Manual" Remember: Any defensive behavior may have legal consequences. It is recommended to resolve disputes through legal channels such as community mediation and judicial procedures. When maintaining one's own safety, one must ensure that it does not infringe on the legitimate rights and interests of others. If you need further safety education materials, you can contact the local public security organ to obtain the official instruction manual.