Смыв - водо-вакуумная система

I was flying international, headed back to the USA from Hong Kong. I chose the last row of seats. Some people don’t like the last row, but I love it. I always check in online in advance to choose the last row before anyone else does. I pick the last row mainly because the seat next to me is often empty. The gate agents don’t like to assign these seats because they don’t recline all the way and the passengers will bitch and complain. It’s a trade off, but if the seat next to me empty, i’ll