Once a company member--who was already a teacher in his own right--arrived late. Liu had already locked the door to the classroom. But he didn't dare to leave, and was still standing there when she let class out in the evening. This gives you some idea of Liu's authority.
曾經有一位已經為人師表的團員遲到，劉鳳學早把舞蹈教室的大門一鎖，等傍晚大家排完舞出來，他還站在那裡不敢離開！