A viral video showing a basketball coach forcing a pupil to slap himself in front of others at a Hong Kong school has sparked concern from a child protection group, which warns the act could cause physical injury and emotional harm. In a video circulating on social media platform Threads on Tuesday, three men in white T-shirts are seen standing around a boy on a school playground in broad daylight, surrounded by other students wearing basketball jerseys. The man in the middle first takes a...