Suddenly Mayella became articulate. “I got somethin’ to say,” she said.
Atticus raised his head. “Do you want to tell us what happened?” But she did not hear the compassion in his invitation. “I got somethin’ to say an’ then I ain’t gonna say no more. That n***** yonder took advantage of me an’ if you fine fancy gentlemen don’t wanta do nothin’ about it then you’re all yellow stinkin’ cowards, stinkin’ cowards, the lot of you. Your fancy airs don’t come to nothin – your ma’amin’ and Miss Mayellerin’ don’t come to nothin’, Mr. Finch – ”
Then she burst into real tears. Her shoulders shook with angry sobs. She was as good as her word.

– Harper Lee

To Kill a Mockingbird, Chapter 18. Mayella, who is never treated with politeness, does not recognize Atticus’s politeness or compassion in the court. Her world is so completely different to his. A product of poverty and her father’s abuse and a victim herself she falsely accuses a black man of raping her.