礼貌待人(Politeness treats people)

the seats in our school reading-room are not enough for all the students. many people get there very early to 'seize' a seat every day. so do i. one day a 'special' thing happened to me. and i learned a lesson that i shall never forget.
it happened on a wednesday morning last january, just before our final examation. i got to the reading-room very early to occupy a seat. i put a book on the desk and then went to have breakfast. but when i hurried back into the reading-room, i found someone was sitting on the seat which i had occupied in advance. i ran to him immediatly and shouted at him angrily, 'go away. it's my seat.' everyone raised their eyes and stared at me unfriendly. my face turned red and i felt ashamed of myself. i took my book and fled helter-skelter before so many eyes.
i dared not go to the reading-room for several days. i learned a lesson in the reading-room. since then i have been keeping the lesson in mind: to be polite to everyone.