“Now, you can also use this to enhance the experience,” the VirTra rep continues, fastening a thick, black device around his waist. The “threat-fire belt,” he explains, issues an electric shock to the trainee if he or she is hit by the imaginary bullet of a virtual assailant, who might appear anywhere on the semicircular screen. “If you get hit in the back, trust me, you’ll remember it. This one will bring you to your knees. The whole idea is to fight through the pain, and keep on going, just the way that you’ve been trained.”