What action is not advisable when managing an uncontrolled crowd?

When managing an uncontrolled crowd, threatening with physical force is not advisable because it can escalate the situation rather than de-escalate it. Using intimidation or force can provoke panic or aggression among the crowd, making it more volatile. In contrast, offering assistance with their concerns, creating a dialogue, and providing information about safety measures are all constructive approaches aimed at calming the environment and addressing the crowd's needs, which can help in regaining control of the situation. Effective crowd management focuses on communication, reassurance, and understanding rather than resorting to threats or aggressive tactics.