Recently I posted this and then I saw the following quote from Emerson:

"The reason the world lacks unity and lies broken in heaps is because man is disunited with himself."

There is a phrase in Hebrew - "Kol hako'eys, al atzmo hu ko'eys" when one is angry he is really angry at himself. So don't get offended when people aren't nice - it is more of a reflection of themselves than of you.