Nearly a decade after she stopped smoking, Mabel Battle still has the last pack of cigarettes she ever bought. She keeps it as a reminder of all the grey Ohio winter workdays she spent standing outside her office with the other shivering smokers getting a nicotine fix.
The cigarette pack, still sealed in its original cellophane, is a testament to her willpower, she says: after countless failed attempts, she finally quit.
However, her success at giving up is also a striking result of a contentious corporate experiment. What finally prodded her into her decision was a fear that her habit might threaten her employment. “I wanted to keep my job more than I wanted to smoke cigarettes,” says Ms Battle.