I think everyone should have to work retail, or in a restaurant at least once in their lives
Maybe to graduate from college. Like, a requirement or a rites of passage from spoiled consumer, to understanding consumer. That way, no one would leave quarters and dimes, as tips. Or come into stores and not even try to refold garments. Or curse out waiters for a mistake the chef made. Or curse out sales associates for not taking a return, because it was past the 14 day deadline, and policy is policy. Or claim to leave a bad report on the hotline. Or threaten to call corporate. Or shout that they'd never eat in this dump again. Or grunt about how you just lost a customer. Yeah, yeah, yeah.
Empathy is by far one of the most overlooked cornerstones of life. If you can empathize with the people whose jobs are to help you, and convince them that they aren't less than, or lower than you because you push pens, and they count registers, then they'll be more likely to treat you like helping you isn't a job. Which is what we all want...in every facet of our lives.
Something to think about.