What do Students do in school during lessons?

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Sometimes you will hear words like,

"Sir, are these teachings for humans?"
"Sir, I think I'm in the wrong class."
"Sir, How do you manage to go thru all these."
"Sir, I'm sure I'm not gotta do this in the future."
"Sir, This really do sucks!"
"Sir, give us a break! Our brain isn't functioning anymore..."
"HELP ME!!!"
"Sir, you make me blind, and I can't hear you already."


Neither are the lecturers lousy nor the teachings are boring, perhaps we have no interest in it.
So you people, please choose the right course carefully; or you will regret your life in poly.