In this article, Oliver Double examines the process of turning traumatic personal experience into viable stand-up comedy material by offering a detailed account of the creative process behind his 2015 show Break a Leg. Drawing on Bergson, Brecht, and Noël Carroll, he explores the origins of comic ideas in personal observation, and argues for a two-stage process of joke creation. This is fleshed out in a detailed examination of a particular routine, in which he uses Koestler's concept of bisociation to show how an initial observation was shaped into a series of punchlines. He also discusses authenticating strategies which comedians employ to demonstrate that they are recalling their actual experiences, and ways in which the dialogic qualities of stand-up affect empathy and intimacy. Oliver Double is a former professional comedian who is now a Reader in Drama at the University of Kent. He is the author of Stand-Up! On Being a Comedian (1997), Britain Had Talent: a History of Variety Theatre (2012), and Getting the Joke: the Inner Workings of Stand-Up Comedy (2nd edition, 2014). A film of Break a Leg is available on YouTube, and the related podcast Breaking a Leg is accessible via iTunes.