Choking on the Fog

One night when we were driving home I encountered a lot of dense fog along a low area of our road. I slowed way down crept along while keeping one eye on Jackson in the rear view mirror. He started coughing and hacking, obviously forcing it and waiting for me to say something. "Are you okay?" I asked him. "What's the matter?" He pointed out the window and coughed, "Smoke!"