Sludge’s problem is more to do with mental hygiene than vest hygiene. I dread to think about the damage listening to heavy metal must do to a brain that is not yet fully developed. As you must know we only start thinking clearly when we get past 60. I think Sludge is a young chap in his early 40s. My recipe for mental health is a Mozart Piano Concerto every day before breakfast. Here’s some beautiful Mozart with a Japanese connection for you :

https://www.youtube.com/watch?v=GTkqZDJ3COU&t=639s