My father is a Reformed Baptist, and very hardline. He doesn't even flinch when saying that God hates most people in the world. As far as total depravity is concerned, he is incredibly extreme as well (even using "foul" language to describe how totally depraved we are). He was ordained in the Reformed Presbyterian Church in North America, but left the denomination after getting frustrated with the people at his church. He calls the Pope the antichrist, believes the doctrine of the real presence of Christ in the Eucharist is "the most vile and satanic heresy straight out of the pit of hell," and anything besides four white walls and a sermon is anathema. I'm not exaggerating.
I first discovered Orthodoxy two years ago in an effort to win the affections of a young girl I knew, who was Orthodox. I study the theology off and one for the past two years, and right now have a good understanding. I do believe the Orthodox Church is the one, holy, Catholic, and Apostolic church, based solely on virtue of apostolic succession. Intellectual agreement with the theology came after acknowledging that Orthodoxy is the historical church. I've been reading the Church Fathers, and there is absolutely 0 question in my mind that Orthodoxy is not only the most historically valid, but also logical branch of Christianity in existence. I believe it so strongly, that I hesitate to even call non-Orthodox branches Christian at all. I've attended a liturgy at an OCA church (yay Russian tradition), and watched/listened to countless on the internet.
When my father first found out about this, he took it pretty well. He said "let's sit down and talk about it." By "sitting down and talking about it" he meant read my a paragraph about the Orthodox church from a Protestant encyclopedia and tell me that he'd take everything away from me if I pursued it any further. I took "we must obey God rather than men" to heart, though, and continued to research it. How do I deal with it? I can't stand being made to sit in his "church" every Sunday and prefer to be in the company of the Body of Christ, but I still live in his house.
PS. I am probably subconsciously exaggerating his position a lot. He's really a great guy. I'm just very bitter towards his intolerance of any diversity of theological opinion in his household. It's probably because the apple doesn't fall too far from the tree.