This reminds me of what a very wise person (a business owner I used to work for) once told me. In an answer to the question "Isn't the customer always right?",

This reminds me of what a very wise person (a business owner I used to work for) once told me. In an answer to the question "Isn't the customer always right?", he told me "No, not always. And when they are wrong, it is our job to convince them otherwise. If successful you will have a customer for life."