This happened.

Customer (producing two completely different types of hair barrettes): This one says it's $2.99, and the other one says it's $4.50. Is that correct?

Me (after scanning both items): Yes.

Customer: I'm buying a lot of stuff. Could you just make that one $2.99 also, and I'll buy both of them?

Me: ...no.

Customer: But I'm buying a lot of stuff.

(She was buying two items that came to $30.)

Customer: I think because of that, they should both be $2.99.

Me: That's... not how these joints operate. I can't haggle. Just because you think something should be a different price doesn't make it so.

Customer: But I'm buying a lot of stuff here.

Me: You're... buying two items... and together, they're thirty bucks... that's not exactly a lot. And, as I said, I can't just haggle. And you're talking about like two dollars here.

Customer: Are you the manager?

Me: ...yes. I'm the manager.

Customer: Well, you are being really inflexible. I just won't take either of the barrettes.

Me: Uh... okay. Er..., $31.79, please?

MY BRAIN WENT PAST FURIOUS AND SETTLED AT AMUSED. I SHOULD ACTUALLY START CARRYING MEDALS AROUND TO HAND OUT FOR THIS NONSENSE. I CAN'T HELP BUT WONDER IF SHE'S AT HOME RIGHT NOW YELLING ABOUT THIS AT WHATEVER POOR HUSBAND SHE HAS.

(Yeah, I'm one to talk--I'm yelling about it at the internet.)