Miss Hilly Talking to Aibileen

So in chapter 34, what did you think about the way Miss Hilly was talking to Aibileen? Was it over the top, or just normal Hilly? Miss Hilly says to Abibileen; "Low and cold, she say, 'You spilled some, Aibileen.' 'I'm sorry, I-' 'Wipe it up.'" All because she spilt a little, tiny drop of Iced Tea on Hilly's plate.