A few of us took up Taekwondo during our school days. I vaguely remember the grading exam included a sparring session, executing a series of moves, and performing some kicking. 2 schoolmates decided that they needed extra practice so they practised sparring and some of the kicks at the basketball court. However they were wearing the school uniform instead of the Taekwondo dobok. They were later hauled into the principal’s office for fighting. Thankfully the sparring component for that grading exam was non-contact sparring, thus no one was hurt. The principal believed their story and let them off.