On the first day of school, a teacher asked her class, "Who here is a Yankees fan?"
Every student knew that she loved the Yankees, so they replied by raising their hands, except for one girl, Rosie.
The teacher asked, "Who do you like, little girl?" Rosie replied, "I'm a Red Sox fan and I hate the Yankees."
The teacher asked why and Rosie told her that her parents were Red Sox fans, so she was too. The teacher said to the class, "So if Rosie's parents were idiots, what would that make her?"
Rosie chimed in, "A Yankees fan!!!"