No matter what industry or service your employer is in, it’s a given that, at some point, you will have to deal with angry and rude customers. As a result, your interviewer wants to know if you’ll be able to stay calm and keep your cool while your caller loses theirs. Of course, nobody likes to be spoken to in a demeaning way (especially for minimum wage), but you want to show that you can remain professional and still try to help the customer.