NEW YORK — Former New York City Mayor entered a bed-bound frenzy last night after failing to deduce which nurse in his hospital room is secretly Borat, intubated sources confirm. “Don’t think you can just pull a fast one over on me, I’m America’s mayor!” shouted a manic Giuliani in between doses of Ativan. “I know a setup when I see one. I knew it in that damn hotel room, and I know it now! Any minute now, when I’m at my most vulnerable, some sicko wearing lingerie is going t