Black Friday 2010

During Black Friday 2010 a Madison, WI woman was arrested outside of a Toys 'R' Us store after cutting in line, and threatening to shoot other shoppers who tried to object. A Toys of Tots volunteer in Georgia was stabbed by a shoplifter. An Indianapolis woman was arrested after causing a disturbance for arguing with other Wal-Mart shoppers. She had been asked to leave the store, but refused. A man was arrested at a Florida Wal-Mart when other shoppers waiting in line for the store to open noticed that he was carrying a handgun and reported the matter to police. He was discovered to also be carrying two knives and a grenade. A man in Buffalo, NY was trampled and suffered a herniated disc when doors opened at a Target store and unruly shoppers rushed in, in an episode reminiscent of the deadly 2008 Wal-Mart stampede.
History
That the day after Thanksgiving is the "official" start of the holiday shopping season may be linked together with the idea of Santa Claus parades. Parades celebrating Thanksgiving often include an appearance by Santa at the end of the parade, with the idea that 'Santa has arrived' or 'Santa is just around the corner'.