I used to know a young woman who was very conservative in her views; political, religious, etc. Well, one day we got into it over womens' rights...
Her: "Well, women are supposed to serve men."
Me: "Really? Says who?"
Her: "The Bible"
The argument was actually a lot longer and she said quite a few more things that were unbelievable (among them the fact that women belong in the home, they shouldn't be in the army, etc...) but this is what really sticks out to my memory.