What one teacher will do to Pokemon hunters during class is savage

The Pokemon Go craze has official extended worldwide -- and teachers are probably not going to be happy about class time 'hunting'. 

Being a Nerd uploaded a photo of a teacher's 'savage' rules for trainers who decide to look for Pokemons during school hours.

Rather than doing the 'normal' punishment, the teacher has taught of quite the Pokemon-appropriate tortue that would have trainers keeping their phones tightly locked away during class. 

Idea for Singapore teachers?