Signs lettered in black against bright yellow announce the defensive driving courses offered by the Allen Driving School. The school occupies the northernmost suite (the one closest to I-20, and easy to miss if you expect to see the Allen name) in the Shell station plaza adjacent to South DeKalb Mall. In addition to the aforementioned classes, which take place three evenings per week, the business also offers DUI risk reduction, license reinstatement, point reduction and insurance discount.