(NEWSER) – It's tough to think of a less appetizing way to celebrate one's 96th birthday. Joseph Vallenti's request for his big day was a slice of his favorite German apple cake, made by King Kullen supermarket. What Vallenti's family recalls the Commack, NY, man saying after taking one bite of the dessert on Thursday: "Something isn't right." Indeed. His niece's boyfriend decided to inspect the uncut portion of the cake—and Neil Gold says he found the remnants of a rat inside. WABC reports that Gold initially thought it was a ribbon of black mold. Then "I saw ... something sticking out," he says. He claims that after flipping the cake over, what he found was a 5-inch tail, still attached to part of the rodent's rear.