Jay Black has Ann Landers to thank for his unusual, if not unprecedented, challenge of two DNA tests pegging him as the father in a hotly contested paternity action.

Black, a retired civil and electrical engineer and the defendant in Waskewicz v. Black, says he had known that Karendale Waskewicz, the woman accusing him of fathering her child in 1995, allegedly suffered from the human papilloma virus, or HPV.