Disgusting
Indeed, but this is not confined to the Third World. There was a famous study performed in the men's room at a major convention of infectious-disease specialists. More than 40% of those who had used the facilities neglected to wash their hands afterwards.
The dirtiest thing in the world is the handle on the mens' room door. It is covered with an invisible veneer of fecal matter. I always use a piece of paper towel to open the door after I wash my hands.
-ccm