Yeah but as a lawyer, you charge your clients a lot more for your time. Your clients are significant.

Customers to me as a waiter in a cafe, they're not significant. No single customer actually matters. What matters is the customer-base as a whole, that's what people in the service industry have to give a shit about. Which means when you come in with your "you owe me a smile because I'm giving you a job" attitude, what I actually do is the bare minimum for you. Why? Because 95% of my customers are good, decent people, who respect me and my job, and who I'd all prefer to have as customers than you, or anyone with a similar attitude to yours.

That's what I give a shit about, the 95% of decent customers who provide almost all of the revenue, while providing almost no issues, and often being very forgiving and patient with me, while expecting nothing but the bare minimum (but again, they get better than the minimum because they deserve it).

And you can complain, throw your little hissy fit, call the manager, whatever you like. It doesn't matter. You don't matter.