hahahaha, well said!

No, not really. I worked in retail for a year before heading back to grad school and even after I'm finished with my degree in a few days, my job will be ~95% customer service, as my chosen career is based heavily in community outreach unless I specifically choose a job that's more behind the scenes (I won't). You are going to have to learn to handle people, as even your co-workers are going to require a particular technique from time to time. I do agree that you are not currently suited for a job working with people, because you don't know how and seem to prefer the answers that remove part of the blame from you. A really good customer service rep can go through their day without taking shit personally, and even turn an unhappy customer into their biggest fan. My boss does it almost daily and the man is adored by everyone at our location, plus others both inside our system and outside. Customers are people, you won't please them all, but you can learn to turn a bad experience into a good one. So it really is you in that you don't know how to treat people when faced with a challenge. That's okay, it's difficult, but don't put down the people who can as though their job is beneath you (you risk being one of those asshole customers you don't like) just because they have developed the speed and skill that you didn't. Even the other subreddit you posted in indicated that 4 tables is a small section to handle.