Loud music can do more than damage your hearing - it can also cause your lungs to collapse.
Experts writing in the Thorax detail four cases where loud music fans experienced the condition, known as a pneumothorax.
http://news.bbc.co.uk/2/hi/uk_news/3614180.stm
Sorry, but the guy who collapsed his own lung with a 1000 watt stereo in his car deserved it.