You're a cashier in a Walmart.

Today, as the day was about to end. You greeted the last customer tiredly from the seemingly endless hours of work. The woman had a big cart full of items. You rang her up, telling her how much she needs to pay. Fast forward about 15 minutes, she kept on ranting about how the price was unacceptable and that she wasn't going to pay that much. That grabbed your manager's attention. "What's the problem, ma'am?" Keonhee's voice rang out in the now empty building.