A dog owner was on the roof of his home in Portland, Oregon, taking down Christmas decorations when he noticed he had company. His golden retriever was bounding around on the rooftop beside him. Briefly confused, about how Ace, his 2-year-old canine, had managed to get up the roof,  Vince Matteson checked the home security camera and found that the adventurous dog had climbed up the steep ladder. The video that was captured on Jan. 7 has since gone viral. “I’m up here, taking down my lights,” Matteson told KATU. “Ace climbs up this whole ladder by himself and is now on top of the roof. He’s up there, just, ‘Hi, Dad! Hi, Dad! Hi, Dad!’ Super happy.” As Ace climbs, another golden retriever, Bo, looks on. Bo, however, keeps all four feet on the ground, choosing to leave the acrobatics to his sibling. Matteson said this was the first …