Went to volunteer for World Toilet Organization just now. It's a bit of useless as I was allocated the slot of 4.30 pm to 7.30pm, but the event was ending by 5.30 pm. But anyway, it's interesting to know that such a organization exists in order to promote better sanitary and cleaner toilet. And the staffs from the World Toilet Organization are very friendly, really made felt like at home.
For more information on World Toilet Organization, visit their homepage at: http://www.worldtoilet.org.