"There are very few houses in which somebody hadn't died sometime or other," said Miss Whittaker. "I really can't see why people should worry about it. I suppose it's just a question of not realizing. We are not sensitive to the past lives of people we don't know. Just as we are much less upset about epidemics and accidents that happen a long way off."
(from Unnatural Death, by Dorothy L. Sayers)