Isn't your teacher lied to you ?

Isn't your teacher beated you for no reason ?

Isn't your teacher get angried to you without a proper reason ?

Isn't your teacher used you and then didn't minded you ?

Isn't your teacher give too much punishments to you ?

Etc…

But still why ?

(Am not asking this to criticize anybody or disrespect others. Just a doubt formed in my mind as a student. If am asking anything wrong please correct me)