You shouldn't talk at the register while working.
Scott is ringing up a customer at the grocery store and his coworker wants to tell him about something that happened earlier.
Scott wants to give the customer their change.
Scott asks his coworker if they can talk on break, so he can focus on his job.
Scott gets carried away chatting with his coworker while counting change, and hands the customer a one hundred dollar bill instead of a one.
Scott hands back the correct change and avoids getting in any trouble.
Scott's drawer comes in short at the end of his shift, and he gets fired.