Yes, a store may be open from 10 a.m. to 9:30 p.m., but that doesn’t mean you should start your over-the-top shopping adventure at 9:28 p.m. Like other people, retail employees have real lives. You may frown upon their $8.25 per-hour salary, and think they're the bottom-rung of society, but like you, they probably have other things going on as well: a midterm paper to write, a girlfriend to take out, or a blizzard to drive home in.
There’s another reason for not shopping two minutes before the store closes: you won’t get quality service. Did you ask for four pairs of shoes and the associate only returned with one or none? That’s because they wanted you to get out the store ASAP.