Customer
A customer, consumer, or buyer was an individual or organization who bought products or services from a shop or a business.

In 1962, the Civil Rights Movement was still in its infancy and black people weren't very welcome in Las Vegas, and they could never be customers. ()

In 2254, Doctor Phil Boyce had this to say about himself and Captain Christopher Pike, "We both get the same two kinds of customers. The living and the dying." ()

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Economics