A Hong Kong school principal resigned after a video showed him verbally abusing security guards in front of students. The incident has prompted calls for reflection on educator conduct.

Educators have received quite a bit of unwanted attention lately. First came a Hong Kong school principal losing his temper during a study trip in Singapore over parking a coach bus. The man was caught on camera hurling abusive language at security guards in the presence of a busload of students. That lapse of judgment was met with a stern response. The principal eventually tendered his resignation and apologised, admitting his error and trying to use it as his last lesson to his students. The.....