Jewelry at the Grocery Store

Vanessa and I were hanging out tonight, and had to run to the store. The closest one was a Mexican market down the street. We walk in, and what is the first thing I see? A jewelry counter in the front. This is a market--food, produce, dairy, chips, crackers, etc. And there is a jewelry counter there; selling watches, necklaces, earrings, and other assorted accessories. Do all Mexican markets have this? Seriously. I was amazed. And fascinated. Do you go in for a gallon of milk and walk out with some new earrings and matching necklace? It seems like there should be a study on this.