Dictionnary Trick

You know your teacher is a fan of dictionnaries. After school, wait until no one is in the class and soak all her dictionnaries in the used toilets. Next morning, repeat the tour until you can't read a thing! There is a 80% chance she will start to panick and punish the big bully of the class. Just act like the other students and wait until she realized you signed your name in the first page of her favourite dictionnary. Then, she might try to immitate Sherlock Holmes!