When a visitor dropped by the new West Fargo store, recently, that world had really gone to the dogs. A tiny Yorkie in a sweater sniffed every treat at ankle level. A Shih Tzu named Oliver eagerly stood on his back legs to beg for a yummy-smelling biscuit. "Dogs are always welcome," says co-owner Megan Pechin Bergseth. "That's why we have treats in our pockets."