No matter what happens to the parabolic property at high altitude in the community.

Legal analysis: if the property is thrown at high altitude, you can call the police and let the police handle it. If the high-altitude throwing causes injury, the police investigation can't find the main person in charge, and they can sue the whole building for compensation. Defend one's legitimate rights and interests through laws.

Legal basis: Article 1254 of the Civil Code of People's Republic of China (PRC) prohibits throwing objects from buildings. If an object thrown from a building or an object falling from a building causes damage to others, the infringer shall bear tort liability according to law; If it is difficult to determine the specific infringer after investigation, in addition to being able to prove that he is not an infringer, the user of the building who may cause harm shall be compensated. After compensation, the user of the building who may cause damage has the right to recover from the infringer. Property service enterprises and other building managers shall take necessary safety measures to prevent the occurrence of the situations mentioned in the preceding paragraph; Those who fail to take necessary security measures shall bear the tort liability for failing to fulfill their security obligations according to law. In case of the circumstances specified in the first paragraph of this article, the public security organ and other organs shall promptly investigate and find out the responsible person according to law.