A worried homeowner fears someone could be killed after a car ploughed into her property for the second time in less than six months. Grandmother-of-three Jenny Garrard was upstairs in her four-bed house near Mersham, Ashford, on Wednesday afternoon when she heard an “explosion”. The 59-year-old rushed downstairs to find the driver of a red Toyota Yaris had smashed through the front wall of her home, sending debris across the living room. Mrs Garrard says Kent County Council (KCC) must now install road signs at the junction of Chequer Tree Farm Road and Colliers Hill, where her unlisted proper…