teachers can lie

Cameroun boy and his friend was arguing in the class, when the teacher entered the class and said "why are you two arguing"

cameroun boy: uncle we found a big of money near the toilet, and we decided to give it out to any student that can lie well.
 teacher: you both should be ashamed of yourselves, when i was in your age, i don't lie and i don't even fall in class..

after the teacher's talk cameroun boy gave the money to the teacher...