As an interesting side note to my comment, my fiancee is Wiccan. We don't discuss it. We don't talk about it. He hasn't practiced it for well over the last five years. It's basically a non-issue. But he hears me debate about christianity all the time and he's even agreed with several points I've made on the subject. Especially where the bible goes.
Disclaimer: I am only responsible for what I say, not what you choose to understand.