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Here Are The 30 Worst Dog Breeds For Retirees

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18. Neopolitan Mastiff
The Neopolitan Mastiff is a massive, powerful dog. They are not high energy, and adults can be downright lazy, just sleeping the day away. But they are huge dogs, with a stubborn streak. Definitely not suited for apartment living, where they wouldn't have the space to move around without knocking things over!