Diplomatic Immunity — Robert Sheckley

"The President has put me in charge of your case," Cercy said. "I've studied Professor Darrig's reports -- " he nodded at the scientist beside him -- "but I'd like to hear the whole thing for myself." "Of course," the alien said, lighting a cigarette. He seemed genuinely pleased to be asked; which was interesting, Cercy thought. In the week since he had landed, every important scientist in the country had been at him. Robert Sheckley's numerous quick-witted stories and novels were famously unpredictable, absurdist and broadly comical.