NA WHO MUMU PASS

After suffering all manner of dirty writings in the hand of students, a block of classrooms has just been repainted & it's now glittering like gold. A student in the school, '
Akpos' got there & wrote on the wall: "God bless our principal for doing this good job, please no one should write on this wall!"
 Ochuko got there & wrote: "You're the first to write on this wall Akpos, I know your writing very well... Don't even try to come back here again, ok!"
Bola wrote: "silly idiots, can't you both see that you're already messing up this wall? Nonsense!"
 Chuks also wrote: "Haba!, this is unfair & you guys all know the school must have spent a lot of money to get this place painted this way. Why? Why?? Why "
ABOKI wrote: "Kai, Wallahi God i go funish all of una for writing yama yama on this wall like this..."
John, their class teacher, got there & wrote: "I know you all... Starting from you, Akpos down to Aboki who wrote last on this wall, go to your classroom & REPORT on your knees immediately!"
Sule, their Principal, got there & wrote: "Mr John, please report immediately to my office with all your students..." Among these Crazy People, Who is More Stupid??? Teacher?? Principal?? Students??