Once, when I was flying on stand-by, I missed a flight because it was full, and had to spend ~14 hours in the Honolulu airport, because I couldn't afford to get a motel room, or anything else. All I had in my pocket was the return ticket. All I had was the water from the water fountain. The next flight I got the very last seat, and it was in the smoking section. Ugh. But, I took it. Fortunately, I was so exhausted from getting almost no sleep the previous day, I slept through the entire flight. It took hours to clear that shit out of my lungs.
This was 40 years ago.