Running and partial nudity enthusiasts descended on Beijing’s Olympic Forest Park this?Sunday past to participate in the 5th annual “Undie Run” as the capital’s weather warms (although only slightly). ?Modeled on the common U.S. college tradition, the relative new (in China) phenomenon was always going to draw more than its fair share of stares and cell phone snaps. This one fellow went for the thong option…a bold choice, even in powder blue.