2 Asian tourists were spotted in a Louisiana supermarket where the clientele and staff were mostly African American. The African American checkout clerk was chatting cordially with the people who passed through her lane until it came to the foreigners' turn.
One of them asked her a question. He had an accent. Perhaps she did not comprehend. She stared at him for about 5 seconds with an irritated look on her face, mouth slightly open. Then she turned away. She did not answer him or seek to clarify his question.
The Ps and Qs she was using with the other customers did not come into use when she was ringing up the foreigners' purchases. Throughout the transaction, she continued staring at them in a hostile manner.