Warded to Ms. MacDonald
You should have stopped at 'it's rather vulgar'. Any wizard who thinks that women are inferior hasn't met a true pureblood woman who can put them in their place with a smile while hosting tea.
Have you considered offering them tea? There are several tasteless potions that could teach them a lesson and could not be traced back to you. In fact, you could keep a special kettle just for such men.