You Get A Post Meridiem Post

(I work in a small ice cream store run by a local family. I typically work the 10:00 to 2:00 shift, which involves cleaning the machines out, restocking the front, and sweeping, and then opening at noon and working the register until 2:00. There is an older gentleman who usually comes in between noon and 12:10, when I’m still doing minor restocking things and am not in the “open/afternoon mindset” yet. I usually try to watch myself around this man, but sometimes I slip up. This conversation happens about 50% of the time.)

Me: “Good morning, sir!”

Old Man: “It’s afternoon! Now I’m not going to tip you!”

Me: “All right, sir, that’s a personal choice. Let me know if you need anything.” *sighs*