That show scares the holy living bejeezus out of me. I'd NEVER EVER EVER become a mule.
But that being said, I watched a Lockup episode set in Norway or somesuch and they had gardens, a water fountain, landscaping, and the inmates were allowed to play sports outside in the open in a HUGE yard, and the prison itself almost looked like an L.A. hotel.
Kid you not.
EDIT: Apparently, their concept was, if you give these disturbed individuals a somewhat sane, peaceful place to live, they will appreciate and adapt to that kind of environment. In opposed to sticking them into 5x5
three-man cells and giving them "kindergarten recess" a couple of hours of the day.