One day Buddha was walking through a village. An angry and rude man came toward him and began insulting him. "You have no right teaching others!" he shouted. "You are as stupid as everyone else. You are nothing but a fake."
Buddha was not upset by these insults. He just smiled. The man insulted him over and over but the only reaction he could get back from the Buddha was a smile and silence. Finally, the rude man left.
The disciples were feeling angry and one of them asked the Buddha, "Why didn't you reply to the rude man?"
The Budhha replied, "If someone offers you a gift, and you refuse to accept it, to whom does the gift belong?" The disciple was surprised to be asked such a strange question and answered, "It would belong to the person who brought the gift."
The Buddha smiled and said, "That is correct." :)