Drive-Thru On Autopilot

(It is ten minutes to close. It’s just me and a manager closing and I am in charge of drive-thru. My manager asks me to take a front order because he has gloves on.)

Me: “All right, your total will be $8.27 at the window.”

Me: “…”

Me: “Crap.”

Customer: “Ready to go home, huh?”