Einstein kept a tomcat named Tiger who tended to get depressed whenever it rained. One acquaintance recalled him saying to the melancholy cat: "I know what's wrong, dear fellow, but I don't know how to turn it off." Einstein was also quoted as saying, "A man has to work so hard so that something of his personality stays alive. A tomcat has it so easy, he has only to spray and his presence is there for years on rainy days."
The Cruise of the Rolling Junk by F Scott Fitzgerald – review