North of SF in Marin this past Saturday, one of the competitors in the North Face Endurance Challenge 50 mile race decided to give up and go home without tellin

North of SF in Marin this past Saturday, one of the competitors in the North Face Endurance Challenge 50 mile race decided to give up and go home without telling anybody. His parents were at the finish line waiting and, apparently out of shame, he did not tell them, nor did he answer any calls. So, the organizers sent out an emergency search and rescue team. It was not for another two and a half hours that they realized that the competitor was sitting at home and choosing not to answer his phone.