>> here is the segregation unit where inmates are placed after fights or other serious disciplinary violations. other than toiletries and legal papers, they are not allowed personal property and are locked in their cells 23 hours a day. while segregation is officially known as the 6-1 unit, inmates have another name for it. >> the box. >> get down. >> it's hell on earth. >> the box sucks. >> a lot of times you go to the 6-1 unit, you hear a lot of screaming. i'm going to kill you. i'm going to get you. >> [ bleep ]. >> these people really do not like each other, and they will take every opportunity to tell whoever is listening how much they don't like somebody else. >> unlike some segregation inmates, dan espinoza usually keeps quiet. especially about the fight that earned him 30 days here.