Roundy's Food Store stocker Jim Creighton felt ominously watched over by an employee time clock Tuesday as, at exactly 12:13 a.m., it noisily 'clunked' over to the second-to-last minute of Creighton's 15-minute break. 'Well, two minutes to go,' Creighton mumbled grimly to himself, attempting to savor the final precious scraps of leisure time doled out to him by his employer. 'Maybe I should grab another Pepsi.' Creighton then sighed and stared at the coffee machine for the next 111 seconds. 