. >> carlton williams, serving a five-year sentence for possession of cocaine and fleeing police, works as a houseman or cell block custodian. >> my job, clean feces, blood, chemical agents. i volunteer to be a house man just to get gains. i get ten days a month, four months a year, of gains. i've been here for 18 months. i have money left, i'll go home next year. when i enter a cell, a room that has blood or anything that's a danger to me, of harming me, i always be cautious. i tell myself, i've got to protect myself and don't let none of this stuff get on me, you know. that's why i have this suit and chemical agents and gloves or whatever because i need to protect. got to be done if i want to gain time. i'm ready to get it over with, go ahead and get back to my cell. >> how did it go? >> cleaning the blood up? it was a lot. it was a lot. this was the first one i did with that much blood. so i guess i'll be more experienced on the next. >> cell's been decontaminated now. it's been cleaned out, bleached, all of the fluids removed. normally, what happens is once the inmate's bandaged up

back to his cell it has to be cleaned and disinfected and once again that job falls to hausman carlton williamsve known. >> this time officers have retrieved the object doctor used to cut himself. >> actually looks like a piece of razor blade. actually had a tough of his chin. >> after the cleanup, correction officers removed all things from his cell to prevent another cutting incident. >> it's not for punishment but for his own protection. it's kind of going to be up to him fou how far this goes. we're trying to protect tim and have to take it step by step. >> doctor will remain under observation for security and mental health staff and given back his mattress once it's determined safe to do so. >> watch your head, doctor. lay down. don't want you to get up i. told you -- >> i know you're going to be good. >> we're not going to leave you unattended. we will come by and check on him. they're very good at what they do and then we'll make sure that he stays safe and we'll not allow him to seriously get hurt. >>> coming up -- >> first time i cut i was in my teens. >> armando doctor explains his ac