The daily school run can be an ordeal for some families on the gridlocked streets of mainland cities. Unless, of course, you have your own helicopter. A video of a white, privately owned helicopter on the sports ground of a Dongguan high school has become a big hit on mainland websites over the past few days, and it offers a stark example of the chasm between the rich and poor. In the 15-second clip, which appears to have been taken on a mobile phone from a building overlooking the sports ground, the helicopter sits on the grass with blades rotating just a few metres from the classrooms. As soon as the student gets out, the helicopter lifts off. Teachers and students from Tungwah Senior High School confirmed that the video was shot in 2007 and the boy graduated last year. 'The boy comes from a wealthy Dongguan family and his father is a successful entrepreneur,' the Guangzhou Daily quoted an unnamed school director as saying. 'The father explained to the school that he flew his son in the helicopter because of traffic jams.' A former student said the school was known as a place where the wealthy in Dongguan would send their children. It charges annual tuition fees of 20,000 yuan (HK$22,700) - more than what most people in the city make in an entire year. Luxuries such as a helicopter are coming into the reach of mainlanders as the number of its wealthy people continues to grow. Research by the Hurun Report, a magazine that tracks the mainland's wealthiest, revealed in April that 825,000 people had personal wealth of more than 10 million yuan. That works out to about six per 10,000 people. This is not the first time Dongguan students have made the news. In May, a city court revealed that three middle school students had lost 1.16 million yuan in illegal betting on basketball games. Still, the businessman's son apparently had to suffer traffic jams for the rest of the time he was at school, after it advised the father not to airlift the boy again. It was a dangerous practice, the school director said. 'We also don't want teenagers to compare how rich their parents are,' the director added.