I write badly, therefore I am a would-be terroristSuddenly a light went on in my head. I remembered the passenger on my left leaning forward in his seat as I scribbled while we waited for takeoff. Seconds later, he'd clambered hastily over me without apology to make his way to the front of the plane. I'd assumed intestinal complications, but now that I thought about it, he hadn't used the bathroom. He'd spoken briefly with the flight attendants and returned to his seat. As the security woman looked at me, I now realized the passenger had been about as interested in my puzzling prowess as she was. Houston Chronicle