Things can get a little bit stressful, both when management is stressed aswell as when customers are stressed. (--comparable to all retail establishments.)
As mentioned above, the job is easy money. However, "you get what you're paid for" so.... it makes sense that you wouldn't get a huge deal of compensation for such an easy job, and Walmart definitely takes advantage of that.
"Store-Set" is a time in which the SWAT team, (a team of rude and errogant associates who hate their jobs) raids a newly constructed Wal-Mart to over-see and ensure proper layout of the merchandise before the store's opening. This is a tedious and AWFUL procedure in which many new associates furiously quit their job after being berated and belittled by the SWAT team-- Very unimpressed with the way this is conducted.