How much crazier can Black Friday get?

In this Friday, Nov. 25, 2011, photo, shoppers stop to look at a display while shopping at Dadeland Mall, in Miami. As reports of shopping-related violence rolled in this week from Los Angeles to New York, experts say a volatile mix of desperate retailers and cutthroat marketing has hyped the traditional post-Thanksgiving holiday sales to increasingly frenzied levels. (AP Photo/ Lynne Sladky)

November 26, 2011 7:04:04 PM PST
Pepper-sprayed customers, smash-and-grab looters and bloody scenes in the shopping aisles. How did Black Friday devolve into this?