1) I don't like waiting in line when the clerk is talking on the phone for a long time. Whenever this happens, I will say, "Would you please do me a favor?" I don't like the salesman always following me when I shop, so I will say, "Will you stop following me?" If I need help, I'll call you. "Usually salespeople say they are sorry, but sometimes they get angry. In that case, I will never go to that store again.
2) If someone talks to me while I am reading, I will be very angry. However, this situation often happens in school libraries. If someone talks to me, I will still answer out of courtesy. But because of my politeness, those people won't know my unhappiness. So they always do it again and again. Maybe I should stop talking to them in a polite way in the future.