Hong Kong police have arrested a man in connection with a scam in which at least 14 people were hired to “sell flags” for an animal concern group after they were spotted carrying fake donation bags and mixing with registered volunteers to collect money from passers-by. The rare street scam came to light during the group’s flag day on Saturday, a Social Welfare Department-approved fundraising initiative under which about 800 registered volunteers from the Hong Kong Saving Cat and Dog Association...