Once upon a time, there were three little pigs who left their mother to build homes of their own. The first little pig built his house of straw. The second little pig built his house of sticks. The third little pig built his house of brick. Soon the Big Bad Wolf came to visit the three little pigs. When the little pig in the straw house would not let him in, the Big Bad Wolf huffed and he puffed until he blew his house in. When the little pig in the house of sticks would not let the wolf in, the Big Bad Wolf huffed and he puffed until he blew his house in. When the Big Bad Wolf came to the pig in the house of brick, he huffed and he puffed, but he could not blow his house in. For his house was made of brick.

Do you ever wonder why old stories like that endure from generation to generation…