DOWN IN DALLAS: Jonathan Adler met possibly his biggest fan Wednesday evening at the grand opening of his Dallas store on McKinney Avenue. Inserting himself between Adler and another guest, a young man declared, “You have no idea who I am, but I have decorated my apartment in everything you have.” “I love you,” Adler replied. It was the home furnishings designer’s 18th store opening, but there was nothing routine about the social crowd perusing the madcap, colorful wares. Art collecting philanthropists Howard and Cindy Rachofsky, who snagged a bright blue bowl, and Brian Bolke were among the faithful who accepted the invitation from co-hosts Katherine Perot-Reeves, Kim Schlegel Whitman and Elizabeth Showers. “I love his stuff — it’s fun, and it’s attainable,” Showers said. “I got a baboon pitcher. I don’t know if you know I’m a frustrated anthropologist.” Adler was headed for yet another store opening in downtown Austin. “We’ll have 22 by the end of the summer,” he said.