The following content is for informational purposes only and does not constitute legal, training or professional advice. When facing threats, the primary goal should always be to protect yourself and avoid escalating conflicts and injuries as much as possible. Local laws have strict regulations on the limits of self-defense and the reasonable use of force. Before using any object for defense, you must understand and comply with local laws. It is also recommended to participate in formal self-defense training so that you can make the best judgment in an emergency. The following are some general instructions to help you understand how to use common objects to assist in self-defense in an emergency situation, but please be cautious and consider safety and legal risks: 1. Pay attention to prevention and environmental assessment • Stay alert, observe the surrounding environment in advance, and try to avoid putting yourself in a dangerous area. • If you are in a potentially dangerous environment, give priority to leaving the scene or shouting for help to attract others' attention. Calling the police is often the safest option. 2. Know common "improvised weapons" • Umbrella: A sturdy umbrella can not only be used to block your view, but also to block attacks at an appropriate angle. In an emergency, you can use the tip of the umbrella to push, but be sure to keep a firm grip on the handle. • Keys: Clamping the key in the palm of your hand or extending it between your fingers can increase the sharpness of the object. If you are attacked, you may consider using the key in your palm or between your fingers to attack the more vulnerable parts of the opponent (such as the eyes or throat), but you must consider using it only after ensuring your own safety. • Pens or other thin tools: If necessary, use objects such as pens to block attacks, which may achieve the effect of stopping by stabbing. However, it is important to note that these tools are not specifically designed for defense and are more risky to operate. • Bags or hand-held objects: The harder body of the bag may also play a certain role in resisting impact or hitting the opponent. 3. Principles of use and action • Always stay calm and concentrate. Self-defense actions should be quick and decisive, but do not rush towards the opponent blindly. Try to use the center of gravity of your body and the objects in your hands to create a short distance. • If you decide to use personal objects for defense, you should try to aim at the areas that may cause greater pain or temporary inability to move (such as the eyes, nose or throat), but this should only be done when the opponent poses an imminent threat. • Actions should be concise and decisive, and avoid continuous unprepared attacks, otherwise you may put yourself in greater danger. 4. The importance of training • Regardless of the defense method, it is recommended to undergo professional training in a safe environment. Simulation training can help you become familiar with how to use the items at hand correctly and effectively in tense situations. • Formal self-defense courses will not only teach you how to use unusual defense tools, but also let you learn how to judge the situation and choose the best response method in actual combat, thereby reducing the risk of unnecessary injury. 5. Law and follow-up response • Self-defense must be carried out within reasonable limits, and strive to avoid excessive defense after the crisis. Inflicting fatal or excessive injuries may cause legal problems. • Afterwards, you should contact local law enforcement as soon as possible to explain the defense process and seek legal advice if necessary. In short, when facing sudden danger in public places, protecting yourself and others is the most important thing. Reasonable use of surrounding objects as temporary defense tools may provide help when necessary, but the most important thing is to get out of danger as soon as possible and seek reliable external rescue. Please remember: any use of force is accompanied by risks, and it is important to learn, practice and understand the relevant legal provisions in advance.