COREY MINTZ hosts dinner parties in his home every week for his popular Toronto Star column, "Fed." Before that he was a restaurant critic. And before that he worked for a living, as a cook. In the past two years, he has hosted 115 dinner parties. He began without napkins or stemware, serving wine out of Nutella jars. But after hosting politicians, artists, academics, monkeys, librarians, chefs, sommeliers, cops, lawyers, psychologists, a spy, a forager, a rabbi, a gambler, a drug addict, and a mayor, he’s become a pro.