"One case from 300 years ago may have given this tale all the oomph it needed to reach its current scare level. In the Annual Register, a publication that records the year’s interesting events, there is an entry for Jan. 25, 1791: “A child of eighteen months old was found dead near Plymouth; and it appeared, on the coroner's inquest, that the child died in consequence of a cat sucking its breath, thereby occasioning a strangulation." Coroner knows best, so it must be true, right?"