Jerry Kern’s vanilla-and-caramel Havanese, Mikey, calmly eyed the knees of people streaming by in the Edge Bar, at the Four Seasons Hotel Denver, on Tuesday. He barked only once — and unsurprisingly, at another compact canine. “He comes in the restaurant with me sometimes,” said Kern, 83, who lived in the luxury hotel for a time with his wife and philanthropic partner of 23 years, Mary Rossick Kern.