• Ping: Do you see any "Do Not" signs?
  • Mama: Yeah, that one says "Do not smoke, do not make a mess and no loud music."
  • Ping: So I guess that means you can eat on the Subway. People get hungry on the subway.
  • Mama: Yeah, but don't make a mess because there is a sign for that.
  • Ping: What? This whole place is a mess!