In the opening scenes, Mary is seen making dinner with Italian dressing on the counter. Soon after, Mary is seen reaching in the fridge after talking to Charlie and retrieves a bottle of the same Italian dressing.
Polite Leader: [Regretfully, after stabbing James]
Shhh. It's OK. Your soul has been cleansed, Mr. Sandin. You've purged. Just one question for you: was his life worth yours? Your family's? Thank you for this unforgettable purge, Mr Sandin.