More evidence that the Y chromosome inhibits multitasking

Bear: When I grow up I am going to be a Daddy, right?

Me: Yes, that is right! And you are going to be SUCH a good daddy, too!

Bear: And SugarPlum is going to be a Mommy and Bug is going to be a Daddy, too?!

Me: Right!

BUG: Nooooooo! I gonna be a pilot!