The Backyard Dog

It is shameful to have a backyard dog that is never played with, socialized, trained, given a toy, given a chance at a normal life. Many lack adequate shelter, medical care, cleanliness and grooming. 

Most likely, there is at least one in your neighborhood. Usually this situation isn't illegal, but it is immoral. 

Something is wrong with the owners of such dogs. 

I would not be friends with such a person.

Plan accordingly.