business owner clyde mcclellan has seen plenty of others. >> we have people that come in on a regular basis looking for employment that are obviously under the influence when they come in. >> reporter: really? >> oh yeah. they look like they're the walking dead. i say, "we're going to send you for a drug test, and what is the drug test going to show us? most of the time if it's pot or booze or anything like that, they tell me. if it's something other than that, they don't come back. >> reporter: mclellan owns american mug and stein in east liverpool ohio, once known as" the pottery capital of the world" with dozens of firms. foreign competition has since wiped out all but two of them. mclellan owes his survival to his top customer, starbucks. you'd think would-be workers in town might be flocking here. but they're flocking to drug dealers instead. >> one day i was looking out of my office in 2015, and there was two policemen standing in my driveway with rifles. i went out, i knew one of them, and i said, "what's going on?" he said, "well, we're raiding this house that's next to your b