"Yes, I must"

Travel David Sedaris in China.  Warning -- article contains some scenes of a scatological nature:

"Another thing one notices in China is the turds. "Oh please," you're probably thinking. "Must you?"

To this I answer, "Yes, I must", for if they didn't affect the food itself, they affected the way I thought about it. In Tokyo, I once saw a dog pee on the sidewalk. Then its owner reached into a bag, pulled out a bottle of water and rinsed the urine off the pavement. As for dog faeces, I never saw any trace of them. In Beijing, you see an overwhelming amount of shit. Some of it can be blamed on pets, but a lot of it comes from people. Chinese babies do without diapers, wearing instead these strange little pants with a slit in the rear. When a child has to go, its parents direct it towards the kerb or, if they're indoors, to a spot they think of as "kerby". "Last month I saw a kid shit in the produce aisle of our Chengdu Walmart," a young woman named Bridget told me.

This was the seventh day of my visit and so desensitised was I that my first response was, "You have a Walmart?"