Another example to something in this realm comes from Brazil, where you can cut time from your prison sentence by riding bikes. http://www.usnews.com/news/artic

Another example to something in this realm comes from Brazil, where you can cut time from your prison sentence by riding bikes. http://www.usnews.com/news/articles/2012/07/12/stationary-bikes-get-brazilian-prisoners-closer-to-freedom http://www.usnews.com/news/articles/2012/07/12/stationary-bi... and yea, totally Black Mirror S01E02. The best one imho.