I read this in Chapter 15 of Do Androids Dream of Electric Sheep and couldn’t pass up the opportunity:

“I thought as much, sir, when you mentioned rabbits. The thing about rabbits, sir, is that everybody has one. I’d like to see you step up to the goat-class where I feel you belong. Frankly you look more like a goat man to me.”

“What are the advantages to goats?”

The animal salesman said, “The distinct advantage of a goat is that it can be taught to butt anyone who tries to steal it.”

“Not if they shoot it with a hypno-dart and descend by rope ladder from a hovering hovercar,” Rick said.

The salesman, undaunted, continued, “A goat is loyal. And it has a free, natural soul which no cage can chain up. And there is one exceptional additional feature about goats, one which you may not be aware of. Often times when you invest in an animal and take it home you find, some morning, that it’s eaten something radioactive and died. A goat isn’t bothered by contaminated quasi-foodstuff; it can eat eclectically, even items that would fell a cow or a horse or most especially a cat. As a long term investment we feel that the goat-especially the female-offers unbeatable advantages to the serious animal-owner.”

“Is this goat a female?” He had noticed a big black goat standing squarely in the center of its cage; he moved that way and the salesman accompanied him. The goat, it seemed to Rick, was beautiful.

Bingley, did you help write this book?