Hong Kong police officers are very restrained in dealing with rioters in violent protests and treat them as their compatriots, though feeling very sad for the acts of violence staged by the rioters, Hong Kong police officer Lau Chak-kei said in a recent exclusive interview with China Media Group in Beijing. Lau, dubbed as "Bald Sergeant," has gone viral online via an image of him holding a gun to protect his colleagues amid violent protests.