Roger Tullgren, 42, loves his heavy metal music. Last year he attended nearly 300 concerts. He missed so much work that he was unemployable. When occupational psychologists counseled him they offered a solution—to classify his heavy metal music addiction as a disability, which gives him a wage supplement.

Since qualifying for disability he has been working part-time as a dishwasher in a restaurant where the owner allows him to turn up the volume.