Using Phone in School Uniform

In some Hong Kong schools, students are forbidden from using their phones even outside of school premises, as long as they are wearing the school uniform. This skit demonstrates how this could easily be a detrimental rule - when Student Dou-ding is penalized by her teacher for breaking this rule, a thief steals her teacher's phone, who then begs for Dou-ding to call the cops... but is met with the response that she can't do that in accordance to the "weird school rule".

Example of:
Ironic Echo