There are cases of middle school boys ganging up to "teach" tomboy girls "a lesson," and of feminine boys being beaten up by their male classmates or even being "sexually harassed" by female classmates.
國中男生集體「修理」校園大姊頭，或是娘娘腔男生被同儕痛扁、甚至被女同學「性騷擾」，都不算罕見。