From this whole thread this was the BEST post
as seen on page 1 (written By d a):
A teacher asks the class a question. No one offers an answer. The teacher says “There are 30 dumb people in here”. One student from the back says, “Your wrong teacher, there are 31 dumb people in here.” The teacher gets angry, and throws the student out.
The student sticks his head into the door, and says, “The teacher was right, there are 30 dumb people in here!”
🙂