If you’ve worked on a campus before, you probably don’t need anyone to tell you when finals are approaching. You know because the term is coming to an end, of course, but you also know because the atmosphere changes. The collective tension-level rises. Students behave strangely: They’re easily triggered, easily confused and sometimes downright rude. It can be a rough time for collegiate retailers and their associates. But it can also be an opportunity to burnish your store’s reputation as a refuge from the academic grind.