Many conversations concerning the topic of religion get quite personal, emotional and out of hand fairly fast. This is the case so often that common etiquette generally recommends that one avoids the subject all together (especially at the dinner table).
It is interesting to note that a subject that is supposed to be about God is so dis-unifying. God as a concept is usually thought to be universal, and is said to be the source from which we all come from; that one link that ties us all together. Despite this fact, most individuals regard religion along with politics as two topics that should be all-out avoided. If God is what ties us all together, why is the subject of religion so controversial?