Adherence to customs and practices

(1) An attorney shall not ignore the customs or practices of the legal profession even when the law expressly permits it, without giving timely notice to the opposing attorney. (2) An attorney should avoid all sharp practices and should refrain from taking any paltry advantage when his opponent has made or overlooked some technical error or matter, bearing in mind that no client has a right to demand that an attorney representing him shall be illiberal or shall do anything repugnant to his own sense of honour and propriety.