I do have a higher moral standard on teachers' behanviour. I cannot accept 老師講粗口 where she is on / off duty.
I suggest the Precious Blood School immediately declare an announcement about the teacher's behaviour, as it is one of the aided schools who receive fees from the government. It should be supervised.
I cannot accept the lies from CY, and I cannot accept the rude behaviour from the Pan-Democratics.
I was a teacher for two years when I was young. I did swear, but i would not swear in front of students. I can't imagine how she can stand in front of the class now, while everyone, including herself, swear to each other in her class.