Kids shoot each other with those stupid things ALL THE TIME! An adult trys to give some little shithead a shot at good dicipline and MOMMY and Daddy throw a friking fit....
Yeah Sensei learned a good lesson, right...
In boot camp if one guy was a wad the whole company had to "pay"...
Why not line up the whole class, shoot every student in the belly and tell them it's because Jr. can't behave himself...