Remember, the 'customer' is always right. [=never argue with a customer]
He is one tough/tricky 'customer'. [=he is a tough/tricky person]
The company has good/poor 'customer' service.
(..) for tax fraud. My store is a landmark in New Rochelle. I have customers all over New York. Well, you're not a customer at Chase Manhattan. We don't know you. I'm sure your bank in New Rochelle they know you, (..)2002 Catch Me If You Can