Studies have shown that students have been more willing to take this rice purity test than to take a very private STD test because they felt the purity test results were more of a no judgement zone.
Russians come from a plethora of different people, but Slavs are the most common. Slavs traditionally have light brown or even blond hair, with only a smaller part of them endowed with dark hair from southern ethnicities, like so: Black hair color is actually pretty common, especially the further you go East.
East German (DDR) working type male; heavily saddled black and red stock coat. Czech/East German (DDR) working type female; all-black (red color seen at tips of hairs in hindquarters was due to prior sun overexposure), long coat with undercoat. Eastern European / Czech working type male; gray sable, close stock coat.