The most exciting part of my journey here at the Asian Development Bank Institute is that I get to meet inspiring leaders who have contributed immensely to helping solve the pressing challenges related to sustainable development. This time it was an interaction opportunity with the world-renowned “Mr. Toilet”, i.e., Mr. Jack Sim. If it were not for the efforts of Mr. Toilet and the World Toilet Organization (WTO), the United Nations would not have recognized 19 November as World Toilet Day, an effort by the global agency to mainstream the discussion on wastewater.