Just a quick little story from my old clothing store days. It should give you a pretty good impression of the sort of people I used to have to serve.
So, we had these "tables", which were essentially three layers of shelving. On these we generally put out our stock of bulk, plain items, like coloured T-Shirts and the like. Every shirt had to be folded, and stack by colour and in ascending order. On days where it had been really busy, it could take a looooong while to completely tidy it.
So yeah, I was there organising one of these tables. It was a Saturday afternoon, and we closed in about an hour and a half. I'd been refolding the t-shirts for about an hour. Seriously, the table was an absolute nightmare, like someone had decided to drop some sort of T-Shirt Grenade onto the table.
I was nearly done, on the last side of the bottom shelf, when I noticed someone walking towards me. I inwardly groaned, as I knew what was about to happen. Sure enough, she begins rummaging through the top shelf, moving all around the display to make sure she ensured complete coverage.
After literally 15 mins, she pulled one t-shirt from the bottom of the pile. Then she caught sight of me crouched on the floor, with a small pile of freshly folded t-shirts in my hand.
She looked at me, to the T-Shirts, and back at me. Then she gave me the smuggest, most hateful smirk I've ever seen, and sauntered off.
I have never flipped someone's back off harder.