Who is scared of whom?

This is Staple, our neighbor Mrs. Sally's dog. She is a master of catching flying balls. If you throw a tennis ball from where she is resting to the far away meadow, she can always get there and back with the ball. The kid basketball is the largest ball she conquered with her magic mouth.
I am a little scared of her as she ran towards me a few times. One time I was trying to run away but I felt down to the ground.
Actually she is really scared of me. She just pretends rushing to me but she always swerved her course in the end. If a ball were on the ground, we both are scared of picking it up if we are both around, as we both are concerned if the other party would attack.
Tony is also scared of her. She bumped Tony once which made Tony cry hard. We don't have a dog at home so that we had little experience dealing with doggies. With Staple around, we are dealing better now.