Song Changjiang cools off with water while keeping one of his palms on the designated spot on a car window, during an "endurance competition of car touching" in Chengdu city, Southwest China's Sichuan province, May 30, 2012. The competition was part of a promotion for a real estate sales program. It attracted more than 120 participants, who were required to keep their hand on a car, and whoever can last the longest would win the use of a car for five years. At 6:30 pm on May 31, the competition finally came to the end after 87 hours, with Song Changjiang, 27, still standing. [Photo/CFP]

Medical staff workers conduct a blood pressure test for one of the last three remaining in an "endurance competition of car touching" in Chengdu city, Southwest China's Sichuan province, May 30, 2012. [Photo/CFP]