Arthur refers to his wife, who never appeared, as "'er indoors"; the implication that she is a fierce and formidable woman is reinforced by the appearance of actress Claire Davenport (famous for such roles) as her sister. Arthur is not above bending the law and sometimes attracts the keen attention of the local police. Despite being the one who we know has been to prison (Arthur having served time as well but this is only mentioned in one episode (Series 3, episode 13, "In") with an additional oblique reference to "minor misdemeanours in the dim and distant past" (Series 3, episode 11, "Poetic Justice, innit?")) it is Terry who serves as the show's moral conscience, keeping Arthur from straying too far outside the law and persuading him to do the right thing whether Arthur likes it or not. The name Arthur Daley has become synonymous with a dishonest salesman or small-time crook.