>> this is what we do. >> one of the inmates now facing disciplinary action for the pruno is robin vongushon. >> christmas was coming. time to celebrate. get a little tipsy. >> vongushon was originally convicted six years earlier for a brutal assault. >> i knocked two people out. i broke somebody's jaw 18 places. i broke -- broke his face basically. >> vongushon is back in santa rita on a parole violation, the latest of 17 violations he says he has had since his assault conviction. this time he was picked up on a warrant for missing his court-ordered anger management classes. when he was searched, police found a switchblade knife, which is another violation. >> violence. everything i do. >> walk that way all the way to the wall. turn to your right. >> unless vongushon convinces staff that the pruno wasn't his,