Two boys who were twins, one an incurable optimist, one a pessimist. The parents were worried about the extremes of behavior and attitude and finally took the boys in to see a psychologist. The psychologist observed them a while and then said that they could be easily helped. He said that they had a room filled with all the toys a boy could want. They would put the pessimist in that room and allow him to enjoy life. They also had another room that they filled with horse manure. They put the optimist in that room. They observed both boys through one way mirrors. The pessimist continued to be a pessimist, stating that he had no one to play with. They went to look in on the optimist, and were astounded to find him digging through the manure. The psychologist ran into the room and asked what on earth the boy was doing. He replied that with all that manure, he was sure there had to be a pony in the room somewhere.