In your armed security guard training, you most likely received instruction on ways to prevent someone from getting your weapon from you and using it against you. For example, where you carry you weapon is important and how you position yourself in regards to a suspect impact how difficult it is to dis-arm you. If a security guard fights with suspects, it allows the suspects to get close to the security guard. When a suspect is close to a security guard, it makes the security officer’s weapon reachable by the suspect.
Recently, in Miami a transit security guard was disarmed, pushed on to train tracks and shot in the leg with his own weapon. The guard along with another guard were trying to remove a suspect from the train station when an altercation occurred on the train platform. The guard was disarmed during the scuffle. It is difficult to protect your weapon when in close combat situation.
This case shows that when on duty as a security guard, your own weapon may be used against you if you are disarmed.