Some very excellent pointers here, including my personal pet peeve: Do not take an empty plate from one guest while others are still eating the same course. Wait, wait, wait.
I also wish more New York restaurants would follow “Never refuse to seat three guests because a fourth has not yet arrived,” but good luck with that one.
The list is very restaurant-oriented, but if I were to add one rule for coffee shops it would be “Do not let the espresso shot sit for more than 10 seconds.” There’s really only one coffee place between my apartment and work (and it happens to be a Starbucks, which is awful, but what are you going to do at 9am), and nearly every morning without fail I watch the barista make my Americano and let the shot sit… and sit… and sit… before finally adding water. I hate being the asshole who asks for a re-do, so I always just take it without complaint. But it would be nice if people who actually worked in the coffee business knew the very basics about making coffee.
What are your restaurant/food industry pet peeves? And for those of us who have worked on the other side of things, what do customers do wrong?