There once was a wise man that went to the communal bath for men in his city. He was dressed in shabby robes and cheap shoes and when he entered the bath house, the staff disdainly assessed his attire and decided he did not need their immediate attention. They gave him a very small and coarse towel, they led him to the back and gave him the smallest bath, and they paid little attention to his comfortability. At the end of his visit, the man generously paid the owner of the bath house a gold piece.
The staff began to flutter with excitement and pleasure, and the owner thought to himself, "If this foolish old man pays one gold piece for neglectful treatment, imagine what he'll pay for superb service!"
The same man came to the bathhouse again the following week. The owner instructed his staff to offer this man the best of the best; he was led to the most spacious and beautiful bath tubs, he was given a soft towel, and massaged and offered beverages and food to eat as he bathed. They washed and combed his hair, and all with a smile on their faces.
At the end of his wonderful second visit, the old man places a copper penny in the owner's outstretched hand and says, "This copper coin is for last week's service, and the gold coin I gave you then was for today's service."
Morals of the Story:
Don't be greedy
Karma, you get what you deserve
Exercise The Golden Rule (exists in at least 21 world religions)