Samia Karim is waiting for her six-year-old son Omar Huq. Omar enthusiastically greets her as he stretches his arms straight out in front of his body, clapping his palms together in his best alligator impression.
"I was two when it first started. I was in a car. I didn't understand why there was blood beneath me. A man was there, on top of me. I was too young to understand. So I closed my eyes."
You see them almost every day. Walking along, you try and turn a blind eye to the person lying in a heap of dusty rags and plastic bags.
You may avoid acknowledging that the dirty clothes, unwashed hair and rotting teeth actually belong to a person.
Earthquakes, tsunamis and hurricanes have struck all over the world in recent years. Aside from the obvious devastation to the infrastructure, buildings and lives of those in the community, there is other damage that proves to be just as devastating but much harder to see: the lack of clean water.