Too many tasks to complete correctly, too many workers that don't actually work or complete tasking, you must basically be "on-call" to get hours over 17-20 per week, some of the managers are clueless, due to the "on-call" type hours this job becomes all consuming....hours are not scheduled but every day off you get called in, part-time employees are used to avoid over time for full-time workers / call-ins / scheduling flaws / holidays (mostly not paid holidays). Workers are expected to do "management" jobs such as inventory, truck delivery, working a double because someone called in. It is not worth the pay....absolutely a teenager job, someone who needs spending money and has no other responsibilities or bills. BTW a "full-time" position is the big carrot that gets dangled each time there is extra tasking or hours added on.