In 2008, a mob of unruly shoppers broke down the doors and trampled a temporary Wal-Mart worker and two shoppers to death on Black Friday in Valley Stream, N.Y.
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A crowd of shoppers storm the gate to Urban Outfitters just after midnight inside the Thousand Oaks Mall in California in 2011. Hundreds of people destroyed the gate to the store, knocking down the metal detectors in the process.
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Police are seen near the doorway of a Toys R' Us store in Palm Desert, Calif., where two people were killed after a shooting occurred during a Black Friday shopping event.
The Desert Sun, Michael Snyder/AP
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A man is arrested in an Arizona Wal-Mart in 2011 while shopping on Black Friday, after police saw him stash video games under his shirt.
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Numerous people suffered injuries while fighting for memory cards during Black Friday shopping deals at a Wal-Mart in Oakland, Calif.
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When the doors opened at a North Buffalo, N.Y., Target store on Black Friday in 2010, the crowd waiting outside turned into a chaotic mob. Several shoppers were injured as they were crushed trying to get through the door.
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Several people were injured in 2005 when a Wal-Mart store in Grand Rapids, Mich., opened its doors to a stampede of customers.
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In 2010, several people were injured while fighting over towels that cost $1.28 at a Wal-Mart on Black Friday in Atlanta, Texas.
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In 2011, a woman at a Porter Ranch, Calif., Wal-Mart used pepper spray on shoppers battling for XBox 360 video game units. Roughly 20 people were injured.
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Hundreds of shoppers flood the gates of Victoria's Secret in Strongsville, Ohio, injuring several young girls.