Yes, The Hundred-Year-Old Man Who Climbed Out of the Window and Disappeared by Jonas Jonasson is a clean book.

On his hundredth birthday, Allan Karlsson climbs out the nursing-home window and stumbles into an absurd international caper, while flashbacks reveal a life that brushed up against the 20th century's biggest events. Jonas Jonasson's bestseller is wildly funny and light on its feet — a farcical romp with nothing objectionable, just deadpan charm.