too true, unknown, there's always at least one report of some fatty that got knocked down and trampled when the heard of elephants hear the store opening bell and the doors fly open with a loud crack from all that mass pressing against them:

http://www.cbsnews.com/stories/2003/11/30/national/main586013.shtml

"Patricia VanLester had her eye on a $29 DVD player at a Wal-Mart SuperCenter, but when the siren blared at 6 a.m. Friday announcing the start to the post-Thanksgiving sale, the 41-year-old was knocked to the ground by the frenzy of shoppers behind her.

“She got pushed down, and they walked over her like a herd of elephants,” said VanLester's sister, Linda Ellzey. “I told them, `Stop stepping on my sister! She's on the ground!”'

Ellzey said some shoppers tried to help VanLester, and one employee helped Ellzey reach her sister, but most people just continued their rush for deals.

Paramedics called to the store found VanLester unconscious on top of a DVD player, surrounded by shoppers seemingly oblivious to her, said Mark O'Keefe, a spokesman for EVAC Ambulance.

She was flown to a hospital, where doctors said she had a seizure after she was knocked down and would likely remain hospitalized through the weekend, Ellzey said. Hospital officials said Saturday they had no information on her condition.

“All they cared about was a stupid DVD player,” she said Saturday."