The Grim Adventures of Billy & Mandy: Parasites: Chupacabras
A Chupacabra comes out of Billy's television as he was watching a video tape Grim rented from a video store in the underworld. Billy, typical of his character, names the dangerous creature "Daisy." Grim warns Billy that Chupacabras are bloodsuckers that only bring suffering. Billy ignores the warning.