Your post was rather interesting and certainly not boring, I can see how the JWs are not tolerent of Christian books and how they think that they are the one and only true religion and everyone else is satanic.
That is an isolationist mentality as well as arrogant, in fact they are the ones that can not produce stable dogma and what's the truth to them today tomorrow becomes a lie.
I said that to her, trying to explain how arrogant it is to think you have the 'truth' and therefore everyone else is wrong. Just what if you had made a mistake!