If it is something that takes your rights away then it is worth fighting against. If it is just them bring a jerk & there is nothing to really "win" it is best to just walk away or let go if what they say knowing their comments hold no value.

What bugs me more is the person being a totally silent jerk who won't communicate anything in words just in actions. I lived with those kind of jerky people all my life & have grown over the years to have zero tolerance for that.....thus the lawyer when necessary. Onterwise I totally will not associate or use a professional who behaves that way.