When should a security guard intervene in a potentially dangerous situation?

A security guard should intervene in a potentially dangerous situation when they feel safe doing so because it prioritizes both their safety and the safety of others involved. The decision to intervene requires a balance of assessing potential risks and determining whether the guard can effectively manage the situation without escalating it further.

Feeling safe to act suggests that the guard has evaluated the environment and their capabilities adequately. This instinctive response is critical in ensuring they do not put themselves or others in further danger. Moreover, being prepared to intervene can deter criminal activity or assist individuals in distress, provided the situation is assessed appropriately.

The other choices do not encapsulate the nuanced judgment necessary in such situations. Waiting for instructions or a supervisor might delay critical intervention when immediate action is required. Acting whenever one sees fit without a context of personal safety could lead to unnecessary risks. Therefore, the correct course is to act only when the guard believes they are in a safe position to do so, allowing for responsible decision-making and effective intervention when necessary.