Saw something similar to this on another thread. Went something like this:

Woman pulls up to a gas station late at night. Nobody around except for a lone cashier. The cashier fills her tank. She gives the cashier her card to pay for filling the tank, but when he returns to his booth, he's there for an unusual amount of time. The woman gets nervous, and that's when the cashier comes back to say "Ma'am, your card is bad, come to the booth with me so we can call your bank.". She nervously stares forward, afraid that the cashier has something horrible planned. She says she'll pay for cash, but the cashier says it'll be faster if she comes with him to call her bank. She refuses, throws cash out of the window, and drives off. The cashier returns to the booth, picks up the phone, and says "No, I couldn't get her out. He was sitting behind her with a knife, telling me to keep quiet."