Admitting that he basically just stands there until one of the stations starts blaring unexpected item in bagging area, local supermarket employee Andy Berenson reported Wednesday that his entire job consists of undoing the handiwork of the stores self-checkout machines. My whole shift is pretty much spent asking people to step aside as I swipe my employee card and clean up whatever mess the machines gotten itself into, said Berenson, acknowledging that he is paid solely to assist frustrated shoppers whose items wont scan correctly or fail to trigger the machines electronic scale, or whose rewards cards dont register with the system. Sometimes I have to coach a customer through the payment process or enter in a code just to let the transaction continue, but half the time I end up having to tell people to use a different machine because the one theyre using froze up. Berenson went on to say that the sole purpose of the stores manager appeared to be approving any transaction involving alcohol. 