The Man with the Magic Eardrums, by Harry Stephen Keeler (epub/Kindle/pdf)
A man standing in a darkened room notices that someone is breaking in via the window. He waits until the intruder is inside then holds him at gunpoint. The two then embark on the most audacious conversation any author has ever had the nerve to write. By the end of the book you'll be exhausted by the tales each man tells, each more unbelievable than the last. The climax will leave you gasping!