It’s Black Friday, which means millions of shoppers across the country will be hoping to snag high-definition televisions, leather boots and other items at “ridiculously low prices,” all while burning off a few of their post-feast calories. Unfortunately, the day also signifies consumers behaving badly, marked by fistfights over the last deeply discounted smartphone and stampedes. Why do shoppers misbehave on Black Friday? Retail scholar Jaeha Lee, who has been studying the topic for years, shares her latest research.

As shoppers head to local and big-box stores to score those Black Friday deals, they may get a glimpse of retailers’ efforts to keep customers coming in the doors – as opposed to shopping online. It’s an important reminder of how much in-store shopping matters to companies and customers alike, writes Kelli Hollinger, director of the Center for Retailing Studies at Texas A&M.

And in case you missed our cornucopia of Thanksgiving stories, you can see them all here.