ha!

Turbulence, an amusing story by David Sedaris:

An elderly woman across the aisle turned to look at me, and I pulled a Times crossword puzzle from the bag beneath my seat. That always makes you look reasonable, especially on a Saturday, when the words are long and the clues are exceptionally tough. The problem is that you have to concentrate, and all I could think of was this woman.

Seventeen across. A fifteen-letter word for enlightenment. “I am not an asshole,” I wrote, and it fit.