A little bit of customer service doesn't require skill. Off the top of my head Taco Bell always asks if you'd like hot sauce. I think In-N-Out asks if you'd like ketchup whenever you order fries, but it's been a while. But, really, In-N-Out does just about everything right. They've never gotten my order wrong. Even their secret menu thing is kind of genius. The advertised menu is clear and simple, which keeps people who aren't regulars from dawdling about while they try to figure out what out of dozens of options they actually want to eat, or even worse, engage in a tedious question and answer session with the person taking the order. But, if you're in the know with the unlisted menu options you get a wealth of customization. Not to mention their burgers are very consistently well-made. Damn, I want to hit up the In-N-Out, but dinner tonight has to be a green smoothie. Kale's just as tasty.... right?