In an exceptional bankruptcy case a judge in the U.S. allowed a 63 year old woman with Asperger Syndrome to avoid repaying nearly $340,000 in student loan debt due to her disorder. Read more about it at time.com:
http://newsfeed.time.com/2012/05/30/woman-with-aspergers-dodges-bullet-on-nearly-340000-in-student-loans/