My dog is a simple mutt from the animal shelter and she does work. Her job is to watch my back when I sleep and if there are strange noises while I am sleeping she alerts me to them. I am able to be awake before anyone successfully breaks into my home in which I have time to grab my gun. For that, she is rewarded with a loving owner, good food, and a warm home.
Plus, she greets me like I am a rock star every time I come home.
Must resist making humorous reply. Must resist . . . .
(BTW, I was kidding about the freeloading dogs.)