If you're reading this, you're not this dumb

[kezipper]

Saying, "Have you ever heard the customer is always right?" to an employee, other than your own, is not a good idea. It is a bad idea. In many circumstances, a terrible idea if you wish to ever return to said business.

When the argument starts because you've been asked to buy something, anything, or leave so paying customers can have much desired table space....