I went to a ground school in the midlands and there was a guy there that sat at the back of the class farting and throwing paper at people all day long. After module one he passed one of the comms exams then went on to re-do the first module again. This time he passed the other comms exam and failed the rest...... again!
To this day the school and students on that course have not heard from him.
To clarify; this is not a slur on the school as the majority of people did very well there on both modules..... Including myself.