In the middle of the busiest time of day, with ten people in line, and I'm working alone.

Woman: I'll have a tall decaf Blonde roast, please.
Me: We don't have decaf Blonde roast ground or brewing right now. The only decaf we have is Pike's, which we can do as a pour-over.
Woman: What?!
Me: The only three coffees we're serving are regular Pike's, regular Blonde, and decaf Pike's.
Woman: That doesn't make any sense. How can you not have decaf Blonde?
Me: We're a kiosk. We only grind three coffees in the morning. Those are the only coffees we can brew all day. You can buy a bag of decaf Blonde if you-
Woman: EXPLAIN YOURSELF.
Me: Okay. We can't grind a whole bag for one person. We only grind three-
Woman: THIS IS RIDICULOUS. I'M CALLING STARBUCKS HEADQUARTERS. WHATEVER. I'LL HAVE REGULAR DECAF. GET ME MY COFFEE.
Me: That's fine, ma'am.
I take several minutes to do a decaf pour-over, the most pain in the ass order ever, but whatever. She stands at the side making impatient noises the whole time and leaves without thanking me.
Five minutes later, an even longer line, her friend comes up.
Guy: What's this about you not having decaf Blonde roast?
Me: We can only brew you a coffee if it's already ground.
Guy: So you can't grind it if someone orders it?
Me: We would have to take an entire one-pound bag of decaf Blonde, grind it, then make it as a pour-over. It's a twelve dollar bag of coffee made for one person for less than two dollars. That would be a tremendous waste of money.
Guy: So this is about money?
Me: Sir, I don't make the rules. We always only grind three-
Guy: Starbucks always makes the coffee we want. I'm calling your headquarters. They're going to hear about this.
Me: Well, I hope you have fun with that. NEXT ORDER, PLEASE.
Anyone who orders a decaf blonde roast shouldn't be allowed in the building. That is inexcusable.
Notes