How to drive a teacher crazy ?

When I was a junior high school student, I always liked to see the movies about how to drive a teacher crazy. The funny movies made me laugh all the time. To drive a teacher crazy is easy and simple. You do not need to think too much or need to prepare any tools if you want to drive a teacher crazy.

First, never inform the teacher if the classroom is changed. It will be fun to just watch the teacher find out where the classroom is. When the teacher is locked in the elevator, just let the teacher be trapped in the elevator. Do not attempt to save the teacher. In addition, when the teacher finds the classroom, just surprise him/her with a filthy classroom. In just a few minutes, you will find out how crazy the teacher is.

However, it is not polite but rude to drive a teacher crazy. So think before you leap.

Please do not try it yourself!