Dealing with your neighbor's illegal behavior does require careful consideration. Here are some suggestions for your reference: 1. **Assess the severity of the situation**: First, determine whether your neighbor's behavior is indeed illegal and whether these behaviors have caused actual harm to you or the community. For example, noise disturbance, environmental pollution, property damage, etc. 2. **Collect evidence**: If you decide to take action, try to collect relevant evidence, such as photos, videos, witness testimonies, etc. These evidences will be very useful when reporting to the relevant authorities. 3. **Communication**: Sometimes, problems can be solved through friendly communication. You can try to have a dialogue with your neighbor, express your concerns and feelings, and see if you can reach a consensus. 4. **Seek legal advice**: If the situation is serious or cannot be resolved through communication, it is recommended that you consult a professional legal person to understand your rights and legal measures that can be taken. 5. **Contact relevant departments**: Depending on the specific situation, you can report to the local law enforcement agency, property management department or community committee and seek their help and intervention. 6. **Protect your own safety**: During the handling process, ensuring the safety of you and your family is always the most important thing. If you feel threatened, be sure to contact law enforcement immediately. In general, ignoring illegal behavior may bring potential risks, but taking appropriate and legal actions will help safeguard your rights and interests and the harmony of the community. It is recommended to fully understand the relevant laws and regulations before taking action and seek advice from professionals.