Deaf maid doesn't do anything?
If someone hires me as some deaf maid to cook for a dinner party, I would definitely start preparing a big meal regardless of if anyone specifically TELLS me to do so.
It makes no sense that she assumes that they don't need for her to do anything just because she doesn't receive specific orders. You're hired, you're at your workplace, DO SOMETHING! Why does she just sit around? Does that seem logical to her?
MAKES NO SENSEEEEEEEEEEEEE!!! I HATE when things don't make sense in movies, it's like no one thinks anything through.