Let me offer an example. While living with the indigenous Indians of Canada, I learned that unlike children in the West most Indian children do not undergo toilet training. When I visited Indian homes on the reservations sometimes I would be struck by strange smell that apparently did not bother anyone else. The source of the odor would usually be a baby in Pampers which were overflowing with some yellow or indescribably colored matter dribbling down, often sticking to the baby's inner thighs as it toddled along, and at times dripping down on the floor. Family members did not appear to mind the child's condition much and would leave the dribblings as they fell.
Out of respect to visitors like myself, however, the mother would often wearily get up and dispose of the matter in a paper bag or some other thing which she would toss into a garbage bag or out the window.