Friend or Foe.?

Ok so im sitting in school and this kid wont shut up he is constantly talking and asking dumbass questions and starting shit with everyone...i Thought i was a pain in the ass but he is bringing it to a whole new level and i cant stand him at all he is talking shit about not only me but everyone else in the room including the teacher...am I the only one who sees what kind of a real scumbag he is.?! How can no one else see it and i really just sit here and wonder why the teacher hasnt kicked him out yet if that were me i would be kicked out in like 3 seconds...so For him to be acting like this and the teacher not doing anything about it is a huge slap in my face and he is even making fun of her too.!!! WTF.?!