Perhaps if there is a troll in the prison they can attack it.
http://www.techdirt.com/articles/20110128/02572112876/court-says-playing-dungeons-dragons-prisons-represents-gang-behavior.shtml
Dang it, why didn't I try making the Dice or something. Wear a leather jacket, a pocket protector full of heroin, looking for my next hit, hassling people for cash, and making money off illicit activity. Darn, wasted opportunities.