The Animal Humane Society is urging Minnesotans keep their pets inside on this weekend of sub-zero temps. Spokesman Zach Nugent says limit outdoor exposure to quick potty breaks: Let them do their business and bring them back in as quickly as possible. Nugent says if you have an outdoor pet, bring them in or be sure they have a shelter out of the wind with warm bedding. Check paws for signs of frostbite, and watch for symptoms of hypothermia which include weak pulse, dilated pupils and extreme shivering. If you have a cat, keep them inside.