I had a class the other day, the last one of the training year. I decided to try the Tueller Drill, I had a shooter face the target and the runner stand behind him. With out warning the runner would smack the shooter in the back and take off running, the shooter then draws and double taps the target. The runner stopped when he heard the shots. What an eye opener!! The runners averaged 30 feet!!! This really got the attention of the students, especialy after they realized that we teach the 21 foot rule. I will definetly be including this drill in all of my classes from now on. Anybody else have some good drills for class?