I saw this last week when I walked down there for lunch - does anyone know why?

A funny story.

I was walking to the corner one day. A dog was coming behind me with their owner. A dog was also approaching from the perpindicular sidewalk. They saw each other, and good dog and bad dog went at it. This was my introduction to Good Dog/Bad Dog. Kind of ironic if you ask me. I'm curious also, as it seemed they had regular business and a great location.