A few years ago, I took a trip to New York City with my mom and my cousin. It was a girls’ weekend to celebrate my cousin’s upcoming wedding. We spent the morning shopping and stopped in a family-owned Italian restaurant. The woman who greeted us was the cook, and her elderly mother who'd started the restaurant was behind the counter (柜台). There were only five tables in the whole restaurant and we were the only customers.We were chatting about what we wanted to do that night when my cousin suddenly stood up and pointed behind my mom and me. Black smoke started pouring from a staircase