Simply too many copies of the same basic story out there in the pages of our newspapers and journals, family acquires puppy, puppy grows up in loving environment, seems happy, healthy; and then three years later, puppy kills one of the kids, or a neighbor kid.
Other than that you have the one famous case of Sir William Ramsay, an English scholar who set out to retrace the steps involved in the book of Acts with a view towards disproving the new testament, and converted to Christianity mainly due to the nature of his findings. One version of the story:
http://www.truthortradition.com/modules.php?name=News&file=article&sid=178
But the basic problem with Michael Vick is that demoKKKrats do not appear to be "celebrating diversity" enough, as I noted.