I don’t know, however, what it had to do with what you were discussing.
In response to Time's question as to whether or not it is a teaching of the Church of Jesus Christ of Latter-day Saints that "God the Father was once a man," President Hinckley is quoted as replying,
"I don’t know that we teach it. I don’t know that we emphasize it ... I understand the philosophical background behind it, but I don’t know a lot about it, and I don’t think others know a lot about it."
(President Gordon B. Hinckley in the August 4, 1997 issue of Time magazine...page 56)
He is right. You can go years to LDS services and never hear about it. It is hardly ever mentioned in LDS literature. Mormons believe it, but it is not in their scriptures. It is found in some old sermons and a popular couplet that people quote. Other than that, it is passed on mostly verbally.
However, anti-Mormons have it as a favorite topic. That more than anything else keeps the topic alive publically.