Erwan Atcheson, from the Jenner Institute, speaks about his time studying parasitic worms, and the worries that come with it. This is the third part of our evening of storytelling and music, where researchers from the Wellcome Trust Centre for Human Genetics, the Jenner Institute, and Cancer Research UK, came together to tell stories about their lives as scientists, with live musical accompaniment from Oxford-based folk group “James Bell and the Half Moon All Stars”. It took place under the dinosaurs at the Oxford University Museum of Natural History. Creative Commons Attribution-Non-Commercial-Share Alike 2.0 UK: England & Wales; http://creativecommons.org/licenses/by-nc-sa/2.0/uk/