Those Darned Falling Gas Prices

Customer: “I paid for $21 and it stopped at $15!”

Me: “Is it full?”

Customer: “No, I paid for $21!”

Me: *squeezes nozzle* “Okay… I got a couple drops in, but I really think you’re full.”

Customer: “But I put in $21. Why won’t it fill up? I know it isn’t full!”

(At this point I pull the nozzle out and gas comes shooting out of the tank like Coke and Mentos.)

Customer: “There’s a hole in my car. What can I do?!”

Me: “No, you’re just full.”

Customer: “WHY?! This never happens at other gas stations! I don’t understand the problem!”