since then , i decided to always sit at the back so i could get comfortable around my own territory , and not miss out on the unfolding drama ; students scratching their heads till sweaty white dandruff start falling down their answer sheets , watching as they whisper and beg for answers from each other , do hilarious sign language , exchange answer sheets , get caught with mwakenya 's and as the smart ones literally fight with the supervising lecturers over the small piece of evidence they so much want to get rid of by chewing , or swallowing it .