(Daniel casually spits the gum. May feels angry.)
May: Daniel, you can't spit the gum everywhere.
Daniel: Come on, just a little piece.
May: Do you know how many people chew gum everyday?
Daniel: I have no idea.
May: Just in Beijing, people consume 300,000 pieces of gum every day.
Daniel: That's amazing.
May: If all the people spit out the gum like you, the whole world would become a big trash can.
Daniel: Come on, you are making too big deal out of this.
May: I just want to remind you to behave yourself.
Daniel: OK, dear sister, I see. This kind of thing will not happen again.
May: In order to meet the Olympics, we should pay attention to the protection of public environment.
Daniel: OK, Mom!
May: Hey, don't call me that.