Sibling rivalry. It's the pits. It has been around as long as there have been siblings around.  Beginning with Cain and Abel, we see one brother disgruntled because God likes the other brother's sacrificial offering better. We remember, too, Isaac and Ishmael, Jacob and Esau, Rachel and Leah, the prodigal son and his older brother. Life is not fair.

Sibling rivalry, and there's a fight. For every kid who is doing a lot of hitting, there is usually a kid who is doing a lot of provoking. There's no such thing as an innocent sibling. A parent intervenes, only to discover that there are two contradictory stories about what brought on the disagreement. Where does the truth lie? There is probably truth in each story. Where is the sibling who never even secretly wishes that a brother or sister w…