A neighbor of mine walked into a take-out place to find an employee changing her toddler on the pick-up counter. She told them why she wasn't taking her order, (they did offer to wipe off the counter before they put her food on it) but she never went back.
I did a stint at WM for Christmas 2005. Hired as a cashier, I had little experience with the rest of the store, except for zoning the merchandise: a lot of half finished coffees and soft drinks left on the shelves, and sometimes food. At a department store in the mall, though, we did have problems with people using the dressing rooms for toilets, and the rest rooms for...ermmm...trysts. In fact, a nationally published magazine said our rest rooms were one of the places in our fair city to initiate a no-strings-attached encounter. It was unfortunate that an alert reader of that magazine tried to initiate something with a man just trying to relieve himself, and ended up being assaulted.
I suggested that security put some chalk on the end of a stick, and mark the heels of the shoes in the restroom stalls, just like parking control chalked the tires of cars, so they could ticket them if they were still there 15 minutes later. No one thought that was practical.
Our store in the mall carried some of the same brands as some of the boutiques in the trendier part of town. One day, a woman came in and tried to return a dress because it had been ruined by perspiration stains. Department Manager looked at the dress and told her it came from Le Expensive Boutique, and the customer said, "But, they won't take it back!"