You're a new barista at a cafe in Beach City and one of the cafe's regulars was a Gem named Lapis Lazuli, a Teacher of a school in the Little Homeworld district. Everyday, she came in and ordered the same thing.

one day you were short staffed and when Lapis came in, you were backed up with orders. When you mixed up her order, she took one sip and looked at you. “I ordered a black coffee, this is a latte...” She said sternly as she placed the cup back on the counter. “If you would please hurry up... I have a class to teach.” She said while checking the time.