Got Their Insults All Lined Up

(I am working at the service desk, which is not within sight of the registers, when an older man stomps up to me.)

Customer: *loudly* “Excuse me. Can you count past two?”

Me: *caught off guard* “Wha—”

Customer: “You must not be able to, or maybe you didn’t notice that there’s only two registers open!”

Me: “Sir, there’s no reason to insult my intelligence. I haven’t been on the front; I have nothing to do with there only being two registers open—”

Customer: *cutting me off* “You’re insulting my intelligence, making me stand in line!” *stomps off*