Gary Mathis held out his arm Thursday as a member of the Anne Arundel County Fire Department painted the left side of his chest with thick, red makeup to give him the appearance of having a gunshot wound. The fake blood and gel sat atop a scar he already had from his previous experience as a firefighter. Mathis wasn’t phased by the wound and snapped a photo to send to his wife. He had seen graphic injuries before on the job and remarked how the makeup reminded him of a woman he once helped who had been shot by a sniper. “Honestly that’s why I’m here,” he said from the staging room of a large-scale active shooter drill in Annapolis. “I wanted to see how I’d respond and what I’d do when I’m on the victim side.” Mathis and dozens of volunteers came out to the J. Albert Adams Academy to partake in one of the city’s largest active shooter drills in recent memory, according to officials behind the exercise.