Plot hole: Doyle steals Alan's judo suit when he inadvertently leaves it in the corridor. Doyle tells Robo that he will leave it in the bike sheds overnight and will sell it to Junky Mead tomorrow. The next day Tucker arrives at school having bought the suit and says he saw it in Junky Mead's shop yesterday and bought it on his way in to school that morning.
Plot hole: In this episode Mrs McLusky is horrified when Mr Sutcliffe suggests staging a girls versus boys contest and tells him that the school does not want to promote sexual inequality, but two episodes earlier (4-16) Mrs McLusky wouldn't let Trisha Yates choose technical drawing as an option, as it was classed as a boys' subject.