Which of the following is NOT a duty of an Advocate?

An Advocate has a duty to act in a dignified manner, to respect the court, not to communicate with a judge in private and impair impartiality, not to act in an illegal manner towards the opposition, to refuse to represent clients who insist on adopting unfair means. In addition, being an office of the Court, an Advocate is expected to uphold and maintain the values of the profession.