Tents beneath Hong Kong bus terminuses that have drawn online complaints during mainland China’s Labour Day “golden week” holiday are being used by foreign domestic helpers, who say they have nowhere else to go on days off.Images of tents lining streets across the city, from Tai Po to Central and Tseung Kwan O, have circulated widely on social media in recent days.Some posts suggested mainland visitors were camping, as tourist numbers surged during the holiday period.However, visits by the...