"Any questions?"
A young man in the back row got up and strode forward.
"Yes. Are you against abrupt endings?"
The teacher hesitated, noticing the aggressiveness in the manner of his eager student.
"No, absolutely not. It all depends on the context."
"The context is this!" The young man exclaimed, as he took out a revolver and fired six shots at the stunned teacher.
Then he smiled, looked everyone in the eye and proclaimed, "Did you write everything down? I'll walk around and I'll take you an exam."