I actually work at Forever 21 as a visual merchandiser. A lot of the girls I work with are not rude but then, of course, there are some that are rude (and shouldn't be working there haha)
There are sooo many rude customers too ya know
Just don't go there on the weekend because that's when it's really crazy. Thats why the visual team works in the morning on weekdays when it's not as busy at all.