all right? >> though he takes some friendly taunting from his brother, mcnee earns a dollar a day working as a runner. >> basically there is four of us, we serve food, trays, pass out uniforms, pretty much whatever we're asked to do we do we pretty much do around here. >> the job lets mcnee spend more time out of his cell which provides another benefit. better access to coffee. >> coffee in a place like this, if you're like me, it's very important. got to have my coffee. first thing on the list, coffee. nothing else to do but sit around work, play cards, drink coffee. >> he does about, i'd say, eight to ten cups a day. tough habit to keep up with, the coffee habit. >> but on the outside, mcnee and his brother share far more dangerous addictions. >> on average day, i could spend anywhere from $300, $500 to $1,000 a day. >> on what? >> on heroin, cocaine.