The term "friendly fire"--the inadvertent attack of military units by their allies--is a concise means of subsuming incomprehensible and paradoxical circumstances under one slogan. Here it is also the title of a book on artists Stefan Demary, Euan Macdonald, Max Grueter, Ben Morieson, and Roman Signer, whose subjects include (self-)destruction, absurdity, and borderline experience.