A student is caught cheating with his cell-phone, and Chiaki is super-mad! He calls all the students to an assembly and angrily threatens to destroy the phone of anybody who's caught with one on school grounds.  The students begin to get angry...
When he's mad, he gets mad!
!عندما يغضب، فهو يغضب
Er regt sich auf,
wenn’s denn sein muss!
Si se enfada, se enfada.
C’est juste que
quand il faut s’énerver, il s’énerve !
È solo una persona che si arrabbia 
quando è il momento di farlo!
Quando ele fica bravo, ele fica bravo!
Учитель Чиаки злится, когда это уместно!