Where does Scout fight with her head three times in the book To Kill A Mockingbird

Cecil Jacobs:

With this in mind, I faced Cecil Jacobs in the schoolyard next day: “You gonna take that back, boy?”

“You gotta make me first!” he yelled. “My folks said your daddy was a disgrace an‘ that nigger oughta hang from the water-tank!”

I drew a bead on him, remembered what Atticus had said, then dropped my fists and walked away, “Scout’s a coward!” ringing in my ears. It was the first time I ever walked away from a fight.

Atticus so rarely asked Jem and me to do something for him, I could take being called a coward for him. I felt extremely noble for having remembered, and remained noble for three weeks. Then Christmas came and disaster struck.