Humour claims no ideological affiliation ¿ its workings merit inspection in any and every individual case, in light of the who, what, where and when of a joke, including the manner of performance, the socio-cultural context, the dynamic amongst participants, and who knows how many other factors particular to the instance. There are as many insights to be gained from the deployment of humour in performance as people to think about it ¿ so herein lie a healthy handful of responses from a variety of perspectives. For the Sake of Sanity: Doing things with humour in Irish performance assembles a range of essays from practitioners, academics, and journalists, all of whom address the attempt to make an audience laugh in various Irish contexts over the past century. With a general emphasis on theatre, the collection also includes essays on film, television and stand-up comedy for those insights into practice, society and culture revealed uniquely through instances of humour in performance.