At a mall, the armed security officers play an instrumental role in keeping shoppers safe and supporting retailers. If you've recently been hired to work in this capacity, your training and on-the-job experience will help you excel. While it's vitally important to remember your training but also trust your instincts and your fellow security officers, there are some things that you should avoid doing. Failing to do so may unnecessarily complicate your job and perhaps even lead to disciplinary issues.