A cordon of "road turtes" repositioned to define an area for a vendor’s cart of refreshing fruit cups. The road turtles stake out an informal, semi-permanent "home" for the vendor’s cart, but closer to permanent in that they’re nailed into the softer material between the broad cobblestones that make up the street. I found this practice in a couple of instances. Semi-permanence in a bustling context where finding a place to conduct business probably requires some sort of territorial negotiation, including making material adjustments/improvements to public space.