answer: #Person1# reminds Daniel not to spit the gum everywhere, or the whole world would become a big trash can. Daniel agrees.
documents: #Person1#: Daniel, you can't spit the gum everywhere.
  #Person2#: Come on, just a little piece.
  #Person1#: Do you know how many people chew gum everyday?
  #Person2#: I have no idea.
  #Person1#: Just in Beijing, people consume 300, 000 pieces of gum every day.
  #Person2#: That's amazing.
  #Person1#: If all the people spit out the gum like you, the whole world would become a big trash can.
  #Person2#: Come on, you are making too big deal out of this.
  #Person1#: I just want to remind you to behave yourself.
  #Person2#: OK, dear sister, I see. This kind of thing will not happen again.