A Hong Kong school that summarily dismissed its principal after he was filmed swearing at security guards in Singapore could face a high legal threshold to justify the move if the dispute goes to court, a lawmaker has stated, likening the decision to a death sentence in the labour sector.Another lawmaker said the termination might affect the principal’s provident fund payments.Lee Cheuk-hing, the former principal of San Wui Commercial Society Secondary School in Tuen Mun, said last Friday that...