The Beitbridge border between South Africa and Zimbabwe is one of the busiest in the world.  Due to the huge influx of refugees from Zimbabwe, the South African government has set up, with the help of several multi-national aid organizations, a refugee camp near the border.  Waiting for the rest of our bus to be processed by South African immigration, I headed to the ladies room.  Opening the stall door I couldn’t believe my eyes at seeing this sign.  Disbelieve turned into horror when I contemplated how dire the economic situation must have been for people to use zimbabwean currency as toilet paper.