There was once a boy named Bobby and just like any 10-year-old named Bobby, he loved to go running outside and playing sports. He loved to ride bikes with his friends. He loved his mommy and daddy and kind of liked his sister. Most importantly, though, was he didn't like to share.
He wouldn't share his toys with his sister, Gabby. He never did his share of the homework with his class for group work. He never even shared his food when he got a bigger plate than anyone else, even if he knew he couldn't eat it all.