Preface: I am in school in the evenings full-time STEM masters and I had about 3 hours of sleep each night for the past three days (I have a midterm tomorrow). I was surpsingly cheerful and energetic this morning solo on bar during peak. I was grabbing a cold brew off the tap and I filled it a little too much. I usually just tip a little out, put on the lid, and handoff as normal. I realized my muscle memory got the better of me and without missing a beat I tipped the extra contents of my cold brew straight onto the floor, placed the lit, and handed it off to the customer who saw the whole thing go down and gave me a weird look and walked off. I greeted her nicely and thought nothing of it until I turned around and noticed cold brew all over the floor. I realized how tired I was and it all hit me at once the rest of peak.