If Lancelot Cooper, handing him the keys, had said, "Oh, by the way, when you get to Sunnybrae, you will find the kitchen rather full of pigs, I'm afraid," he would have known where he was. But not a word had been spoken on the subject. The animal had come upon him as a complete surprise, and he sought in vain for an explanation of its presence. It was not as though it had been a corpse with a severed head. A corpse with a severed head in the kitchen of Sunnybrae he could have understood. As a writer of mystery thrillers, he knew that you are apt to find corpses with severed heads pretty well anywhere. But why a pig?
(from Pigs Have Wings, by Sir Pelham Wodehouse)