The Mother and Father agree there are gender differences but the mother would like to keep the gender bias' to a minimum so on a trip to buy new toys for The Boy, The Mother buys him a doll to go with his new ball.
Shockingly, to The Mother at least, The Father's reaction is "no way, my boy is not playing with dolls".
The Mother and the creepy looking doll win.
The discussion that follows:
The Mother: If we had a girl would you object to her playing with trucks?
The Father: I wouldn't encourage it.
The Mother is so shocked because The Father's gender demon had never revealed itself until this day of balls and dolls.