(Oldie) A city boy goes to visit his grandfather's farm in the country. A he was walking along the fields, he noticed something very odda pig, sitting under a tree, with a peg leg. Later, as he was eating dinner, he asked his grandpa: ""Hey, why does that pig out in the fields have a peg leg?"" ""Oh, Old Jim?"" his father replied. ""Well, that's a very special pig. Saved my life."" ""Oh, really?"" said the son, amazed. ""How?"" ""Well, it was this one night. Your grandmother had gone to bed, and…