Parents: If your children have access to the Internet, you don’t want to miss this show. The latest trend popping up online is videos of teens who are attempting outrageous stunts and daring others to try even riskier versions, often with tragic results. Meet young adventure-seekers who say they’re proud of their death-defying activities, and hear about the gruesome and life-threatening injuries they’ve endured to gain notoriety. Youthful Daredevil Mike, 23, says he loves performing extreme stunts, and his dangerous activities have been viewed by millions online. Although his stunts, like doing a backflip off a vending machine, have landed him in the hospital, the young man says he wants to continue his risky lifestyle until he’s 35. Adrenaline Rush Seth, 18, also videotapes his stunts and uploads them to the Internet. One trick went so badly, he landed in the ICU. His mom, Tammy, says that he continues to perform the dangerous feats. Will a warning message from E. R. physici