When second and third semester seniors stop doing their homework, give up on extra-curricular that actually requires work, develop mysterious illnesses, sleep until noon on a Tuesday, "forget" to go to gym class that just happens to clash with a sample sale and cut other classes to go home and hook up with their boyfriends or better have sex.

when you're hungover as shit after a spending a night drunk as a skunk

When Miki and Imaya significantly dropped skill and choked their last season-- while watching underclassman succeed.