English title: ”They occupy our comfortable couches and armchairs” - the library staff’s view on problem patrons. The purpose of this study was to examine the views of problem patrons among staff at swedish public libraries to see if there was an overall view. We also wanted to look into which feelings these patrons bring up from the staffs perspective and to whom the problem patron is a problem for. We sent out an questionnaire to employees in public libraries and got responses from over 20 different counties. As a theoretical framework we used social constructionism and the results were analysed by using a modified version of Berger and Luckmanns Social construction of reality model.   The results of this study identifies nine different categories of problem patrons and the most common feelings these patrons contribute to were frustration and discomfort. Our results also shows that the problem patron can be a problem to both the employees at the library and to other library visitors, but not always at the same time, in the same situations, and under the same conditions. Whether a patron becomes viewed as a problem or not depends according to this study on society and library norms, which we try enlight in our analysis and discussion section.