An article in the New York Times shows how feral cats are finding new homes as "working" cats: "The standard of care for feral cats is known as trap-neuter-return (TNR), which entails humanely trapping the cat, sterilizing it, and returning it to where it was found. But sometimes the cats can’t be returned to where they lived before, either because their caretaker is no longer there to provide food and water, or because their environment has been made cat-unfriendly. They need a place to go... Animal rescue groups have created working-cat programs wherein homeowners or store owners agree to provide the cats with shelter, food, water and medical care — promising to take care of it like any other pet — in exchange for an added line of defense against vermin."