Nah, too easy...I prefer these idiots be breaking rocks or clearing brush on chain-gangs. A few summers clearing trash off the sides of highways...that sort of thing. I'll bet most of them have never worked a hard physical day in their lives. I'd give them the opportunity to experience real hard work. A guy with a gun, a whip, and a big, ferocious dog watching them. And no computers in their cells.
I’m thinking razor blades, salt, alcohol (for the administrator) sleep depredation and Rap Music (sorry that aint Music)
Duct Tape and Castration but not in that order to shut them up for good.