Wearing headphones while riding in traffic is a good way to qualify you for a Darwin Award. This is a yearly occasion, in which people are honoured for actions which resulted in their removal from the gene pool. Previous winners include a guy who welded a JATO to the trunk of a 66 chevy, as well as an honourable mention to that nut who got airbourne with 6 dozen baloons and a lawnchair a few years ago (he was not qualified to win, because he actually survived that stunt). If you are trying to make a social statement rather than musical one, may I suggest doing something quicker and more drastic? The result will be the same, but people will worry about you for a shorter time, that way.