In addition to the coyotes that everyone else has mentioned, this is also terrible for other animals in the neighborhood. Cats are FEROCIOUS hunters, and can q

In addition to the coyotes that everyone else has mentioned, this is also terrible for other animals in the neighborhood. Cats are FEROCIOUS hunters, and can quickly have a deleterious effect on the local small wildlife. On top of this, they frequently patrol other people's property, and, if they have indoor cats, can cause serious stress to said indoor cats. It's just not a great idea.