My Big Blunder at Work

So here's the thing, I've been working as a barista for about six months now, and I thought I had everything down pat. Yesterday, though, I totally spaced out during a rush hour and accidentally gave someone their order with extra sugar when they specifically asked for it without! Can you believe it? The look on their face was hilarious but also mortifying. Thankfully, they were super nice about it and laughed it off. But man, the thought of screwing up like that again keeps me on edge all day long!