Attack Averted: Bear keeps three teenagers prostrate for two hours

Caitlin Adamo couldn't have imagined that the bear-safety class she took in elementary school would ever pay off. But when she saw a bear charging toward her and her friends Madaleine Weber and Melissa Davaz as they hiked in Montana's Paradise Valley, she knew just what to do. All three of the young women dropped into the fetal position and covered the backs of their necks with their hand—and there they stayed for some 2 hours as the bear charged and recharge, but never attacked.
http://www.billingsgazette.net/articles/2006/06/11/news/state/60-bear.txt