5. Avoid saying “toilet.”

Reason: “Toilet” is simply improper.
Exception: None Royals are required to speak in a formal and refined manner; as such, they must refrain from using the word “toilet” and instead use the word “lavatory.” “Toilet” is too abrupt, claims the author of Regulating Rules for Girls, Jerramy Fine.
Only jeans are allowed occasionally. ©Shutterstock/New Africa
Fine stated that speaking of the word “toilet” was “equally jarring” to upper-class “English ear[s],” drawing comparisons between it and the “f-word.” Indeed, according to Fine, he had “the impression” that the “f-word” was preferred to the word “toilet” by affluent British people.