Sorry to hear that bud. I would give the obvious advice and say "just don't speak religion with him" but once alcohol is thrown in the mix he may be incapable of accepting any sort of boundary in conversation. My father doesn't drink, my family is mormon, but I notice that if I lead into a religious conversation that is happening around me or make any sort of sidecomment it always leads in ruin. I exit the room in the face of religious conversation as it is often fanatical. All they ever talk about is Church and Church issues. I run like the wind. haha.
"Just call me Bruce Wayne. I'd rather be Batman."
