I worked in a gas station for a couple or three years, before I went back to college. Held nearly all the customer-facing jobs; gas pumper, tireman, mechanic, station manager.
Gas pumpers and booth attendants tend to get pretty inured to armed robbery. If they are smart, they just try to project calm cooperativeness back at the robber, who is often jumpy and easily frightened. The 24/7 station I managed got robbed two or three times a month.
We had a guy rob the station once with a huge, expensive hunting rifle. He had to get out of the car and drag the weapon out, which probably cost ten times the amount of money he scored.
