That Goodwill DJ guy sounds like a hoot!
I must amend my previous comments - Goodwill employees around here generally have been very friendly, which I think is a reflection their stores being better kept. However, the Salvation Armani is generally a miserable joint and is across the board in Minneapolis. I don't know why that is, as I've been in SA locations in smaller towns in Minnesota that are really quite nice to shop in.
Aside from the SA complaints, Minneapolis/St. Paul does have some great thrifting. We have three Value Villages that I adore and a for-profit Unique Thrift which has three location that are enormous. St. Vincent de Paul in St. Paul is also a fun store to visit.
Back to oddities, though:
When I still worked at a thrift store, we had to make wall displays all the time. One time, over the shoe department, we hung up various kinds of shoes: athletic, sandals, boots, high heels, all in a collage on the wall. People always want to buy whatever is displayed, of course, which we didn't do generally. But one customer convinced me. She saw this one mateless lipstick-red high heel shoe tacked up in the display and had to have it. I kept telling her that it didn't have a mate, which was why we chose it for the display and I couldn't sell display items. Finally, she told me she didn't want to wear the shoe, but that she was an art student doing a collage project and had been scouring thrift stores looking for the perfect red spike heel and ours was it. Knowing well the feeling of hitting every store looking for something that is *just right* I climbed up the ladder and pulled it down for her.