Drivers who won't use their right of way at an intersection, but instead want to be polite, and play "Après vous, monsieur!" "Non, non, monsieur, après vous!"
If you have the right of way, MOVE YOUR DAMN CAR and CLEAR THE DAMN INTERSECTION.
My husband hates that one, too! One time we decided to number our “gear grinders” to save on word usage. Always at a four way stop that number gets yelled a bunch!