The Duchess of Cambridge has a strict rule that staff must obey when it comes to working for her family.
As working royals, it's hardly a surprise that Prince William and Kate rely on helpers to ensure the smooth running of their home, and naturally, when it comes to hiring staff they have extremely high standards.
However, there is one strict rule in particular that staff have to abide by if they want to call Kensington Palace 'the office'.
