When considering initiating an impromptu rally, it is necessary to first ensure that all actions comply with local laws and regulations and are based on the principles of peace, non-violence and the public interest. The following are reasonable situations and related precautions that may require impromptu gatherings： --- ###**1. Reasonable situation** 1. **Public emergency** -When major social injustice (such as racial discrimination, violent law enforcement, etc.), inadequate response to natural disasters, or sudden sexual assault against the public interest occurs, it is necessary to quickly gather public attention and promote solutions. 2. **Urgent social issues** -When it is necessary to immediately express opposition or support for urgent government or corporate decisions (such as environmental damage, public health crises), such as sudden pollution leaks, unfair vaccine distribution, etc. 3. **Civil rights are threatened** -When basic human rights (freedom of expression, freedom of assembly, etc.) are directly threatened, and delay may lead to irreversible consequences, it is necessary to fight for rights and interests through assembly. 4. **Commemorative or solidarity activities** -For sudden tragic events (such as terrorist attacks, major accidents) or urgent needs of solidarity with oppressed groups in other regions, it is necessary to express condolences or support through gatherings. --- ###**2. Legal and ethical prerequisites** 1. **Compliance with legal procedures** -Even if the rally is impromptu, it is still necessary to comply with local rally and parade regulations as much as possible (such as oral or written reporting in advance) to avoid being deemed an illegal rally. -Exceptions: If the law itself severely restricts the legitimate rights of citizens (such as unreasonable prohibitions under martial law), it is necessary to weigh the legitimacy of the conflict between human rights and the law. 2. **Principles of non-violence and peace** - Ensure that the rally does not incite hatred, violence, or damage public property. Participants need to be clearly disciplined. 3. **Risk assessment and safety assurance** -Evaluate the safety of participants (such as epidemic prevention measures, crowd control) and venue safety (avoiding major traffic routes) in advance, and formulate emergency plans. --- ###**3. Organization and implementation recommendations** 1. **Rapid coordination and communication** -Quickly contact the core organizers through social media and instant messaging tools to clarify the demands, time and place of the rally, and the guidelines for action. -Assign a coordinator to maintain order and avoid chaos or interference by external forces. 2. **Clarity of demands** -Even if time is tight, it is necessary to formulate clear and specific demands (such as “request a thorough investigation of an incident” and “stop a policy immediately”) to avoid vague slogans leading to misunderstandings. 3. **Communication between the media and the public** -Take the initiative to convey information to the media, explain the legality and purpose of the rally, and reduce the risk of spreading rumors. --- ###**4. Risks and reflections** -**Potential risks**: You may face legal investigations, safety threats to participants, or misunderstandings of public opinion. You need to inform the participants in advance and be mentally prepared. -**Follow-up actions**: After the rally is over, the implementation of demands (such as joint signatures, legal proceedings, etc.) should be promoted to avoid staying in symbolic protests. --- ###**Summary** The legitimacy of impromptu gatherings depends on the balance of urgency, legality, and public interest. Be sure to confirm before taking action: is there no other effective communication channel? Is it possible to achieve the goal through safer methods (such as joint signings, online initiatives)? Only under the premise of necessary and compliance can we ensure that the rally is both effective and responsible.