The students, just, (although I seriously doubt they're humans) at my school have developed rather unusual methods to piss off a teacher: Here are some
Everyone breathes heavily and loudly when we are doing "silent" work.
Everyone "borrows" a harmonica from music during lunch and then starts playing in class, one at a time, so that when the teacher (victim) turns around to see who it is they end up turning round and round.
Person sitting next to computer keeps plugging and unplugging USB to make that horrible "boing" sound.
Sometimes everyone grabs a dictionary and draws a **** on the first few pages before throwing it at eachother, before saying "Miss he asked for a dictionary".
When the teacher leaves the class to talk to a student outside, everyone screams and throws textbooks at eachother, before flipping all the tables over and lying down on the floor.
And actually passed?