There also wasn't one single bit of grass or dirt outside the airport. Even the median strip was a concrete sidewalk. Where did Atlanta's pet travelers pee? Maybe city dogs just learned to use the sidewalk. We kept walking. It looked like if we crossed the road that all the cars used to get onto the highway, we might come to a planted-up area, but we also might get killed. Finally, I just lifted Cannoli up and plopped her down on a great big ashtray built into the top of the trash barrel. "Good thing you're not a German shepherd," I said.