Take yesterday, for instance, when I went into my new Harris Teeter replacing the old one next door.
Now, I wasn't immature enough to bitch about the fact that I don't know where everything is in the new physical layout, because I'll get used to that. But there were some products/package sizes that they are not stocking in the new/improved site. (For example, while they used to sell Fever Tree tonic water in 6.5 oz bottles - the perfect size for my G&T recipe -- they flipped the packaging to 5.5 oz cans, despite that they sell other weird Fever tree products like "blood orange soda" in the 6.5 oz bottle. And no jumbo potato chip bag, instead a 2 fo $9 regular bag offer.) So, when the young clerk robotically asked "did you find everything all right today?" as I pulled up to the checkout, I replied, "no, but that's not your problem."
By the way, if they do think I'm a dick, and they talk about it around the store and bitch about being subjected to it, eventually somebody takes notice. (Alternatively, if you'd like, I could ask for a copy of the organization's donation list while I'm in line, to the chagrin of other customers.)