A chemistry professor at a large college had some exchange students in the class. One day while the class was in the lab the Professor noticed one young man (exchange student) who kept rubbing his back, and stretching as if his back hurt. The professor asked the young man what was the matter. The student told him he had a bullet lodged in his back. He had been shot while fighting communists in his native country who were trying to overthrow his country’s government and install a new communist government.
In the midst of his story he looked at the professor and asked a strange question. He asked, ‘Do you know how to catch wild pigs?’ The professor thought it was a joke and asked for the punch line. The young man said this was no joke. ‘You catch wild pigs by finding a suitable place in the woods and putting corn on the ground. The pigs find it and begin to come every day to eat the free corn. When they are used to coming every day, you put a fence down one side of the place where they are used to coming. When they get used to the fence, they begin to eat the corn again and you put up another side of the fence. They get used to that and start to eat again.
