ends, furniture is against the door. >> you guys did fantastic. >> reporter: and the security expert added this. be creative, like hitting a terro terrorist on the head with a fire extinguisher. or spraying it into their eyes. >> pull, aim, squeeze. side to side. what they can't see, they can't kill. okay? that's why my favorite improvised weapon next to a fire extinguisher is a hot cup of coffee. >> what happened in conleyville was frightening. everyone here feels much more prepare. >> i knew nothing coming in. and the fact that they said turn off the lights, barricade, run, hide, they gave a number of