To those who know me, my answer is always, "Have you MET my husband's family??" and then usually something about the shallow end of the gene pool... Most everyone in our circle has at least heard (if not witnessed) some of the horror stories about his very large/very dysfunctional family (it's a wonder they haven't ended up on Springer).
To folks who don't know me, I usually say we don't want to perpetuate a history of physical conditions, mental issues, chemical addictions, and violence. That usually shuts 'em up. <img src="/images/graemlins/devil.gif" alt="" />