Big Yellow Warning Bags Are Your Friend

(A girl pulls up to a gas pump. I’m watching her through the window from behind the cash register as she removes the OUT OF ORDER BAG placed over the pump (clearly marked, bright yellow bag) and throws it in the trash next to her. She plays around with it for a while and then walks toward the door.)

Girl: “Your pumps aren’t working.”

Me: “Go back outside, pull the bag that you just threw away out of the trash and read it. That should solve the problem.”