Boy Vs. Dog.
As soon as Emily leaves on the bus the Dog and the Boy start wrestling and chasing each other.
He tries to pin her to the ground : she punches him with her front paws.
They both weigh exactly 40 pounds.
They both have teeth and are not afraid to use them.
She has speed, he has a sword.
And they both have an endless supply of energy.
The good news for me is they will both sit calmly and quietly for a piece of cheese.