A group of middle school boys in Pu'er city, southwest China's Yunnan Province, took on a unique challenge – to see who could ju...

A group of middle school boys in Pu'er city, southwest China's Yunnan Province, took on a unique challenge – to see who could jump and land on a stair with the smoothest, most graceful move. You might think you know how it begins, but the ending is sure to leave you in stitches. #ChinaSeen