Violet was beyond familiar with every single servant of the estate. She had kept constant eyes on the servants' behaviors.
The senior servants that had stayed in the estate for more than two years now, were very well aware of this fact, that is why they always thought their actions three to five times through, especially when Violet had nothing else to do.
The head butler had no means of escape from Violet's eyes, that is why, to parry an intelligent person, he must also act as an intelligent person. With his calculated actions, he spared himself from Violet.
Those in favor will be in favor.