Parents in Hong Kong have questioned the “scientific basis” of the government’s decision to suspend classes at all day schools on Friday, with some arguing their children’s graduation ceremonies were cancelled despite little rainfall in the morning. In a WhatsApp group with more than 1,000 parents, furious comments started flooding in at around 7.30am to complain about the decision. “There is not a drop of rain. Due to class suspension, I still have to take special leave to take care of my...