They even have moved beyond energy to own stuff ranging from fast-food chains to dog-food factories.

FORBES: Out of Energy

They were also pricked with needles, tied up in chains and put on a dog's leash and "humiliated" in front of others.

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There are now more than 35 major chains in this niche, from doggy day cares, groomers, and dog-walking providers to pet stores, dog trainers, and boarding services.

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