"It was exhausting," he recalls, slumped in the booth, fighting off a nagging cold. "I had to be that way all day and all night, because even if the tiniest detail had gone awry, it could've made them suspicious. I mean, even if I went to the bathroom, I had to make sure I went to the bathroom as Borat." As Sacha Baron Cohen finally becomes himself again, he tells Patrick Goldstein about the thrills, spills and smells of being Borat.