“The Grease Spot” by L. Ron Hubbard
Publication date: July 1936
Original publication: Thrilling Detective
Genre: Mystery & Suspense
Story description: The owner of a wrecking company stumbles on two violent bank robbers who decide that he is their ticket to freedom and they are his ticket to a watery grave.
Currently available as part of the Stories from the Golden Age series, in the title Mouthpiece.