I forget the specific name, but there was a small Asian grocery store next to one of the used car dealers I worked for when I painted cars in the Atlanta area. I had my gf with me and was stuck at the place doing some work on site. I told her, "watch everyone that goes in and out of that store and tell me if you ever see a person walk out holding a bag. Sure enough, around a dozen men walked in, none walked out carrying anything. She couldn't believe that that little place was such an obvious prostitution joint. The name was just like this too.
I'm just happy people are into Vietnamese food that just isn't slightly different American style Chinese... I was fortunate to grow up with a bunch of Vietnamese folk and have been raised by their cuisine to some extent (tons of parties growing up)