David Sedaris writes about smoking.

It was odd. I’d always heard how clean Canada was, how peaceful, but perhaps people had been talking about a different part, the middle, maybe, or those rocky islands off the eastern coast. Here it was just one creepy drunk after another. The ones who were passed out I didn’t mind so much, but those on their way to passing out—those who could still totter and flail their arms—made me fear for my life.

Take this guy who approached me after I left the store, this guy with a long black braid. It wasn’t the gentle, ropy kind you’d have if you played the flute but something more akin to a bullwhip: a prison braid, I told myself. A month earlier, I might have simply cowered, but now I put a cigarette in my mouth—the way you might if you were about to be executed. This man was going to rob me, then lash me with his braid and set me on fire—but no. “Give me one of those,” he said, and he pointed to the pack I was holding. I handed him a Viceroy, and when he thanked me I smiled and thanked him back.

It was, I later thought, as if I’d been carrying a bouquet and he’d asked me for a single daisy. He loved flowers, I loved flowers, and wasn’t it beautiful that our mutual appreciation could transcend our various differences, and somehow bring us together?

Once you start, you can't stop. Until you're "finished."