Which of the following behaviors should a security guard avoid while on duty?

Mistreating individuals seeking assistance is critical behavior a security guard should avoid while on duty. A foundational aspect of a security guard's role is to provide a safe environment and aid those in need. Misconduct towards individuals seeking help can not only escalate situations but also damage the reputation of the security service and undermine the overall sense of safety in the establishment.

Maintaining a professional demeanor, clear communication, and accurately documenting incidents are all essential responsibilities of a security guard. A professional demeanor helps instill confidence in the public; effective communication ensures clear understanding and response to situations; and thorough documentation is vital for legal and safety reasons, providing an accurate account of events should they need to be reviewed later. Avoiding mistreatment of those asking for help is paramount to fulfilling the primary purpose of a security guard's duties effectively.