I will let him tell you in his own words:

The second image Carter recalled was of a young Ethiopian girl’s eagerness to demonstrate that she, like her brother, could use the small latrine their father had made for them.

“She spread her skirt out very carefully and she squatted down to relieve herself.” Carter said.

Carter added jokingly, “We took some pictures of it.”

Just what I want hanging in my living room - a picture of a girl urinating.