The rule was delivered firmly. "Phones are strictly banned in this classroom." Clear, non-negotiable, said with real authority. And then, within the same class period, she checked a message on her own phone mid-lecture, barely pausing the lesson to do it.
Nobody pointed this out directly. Not one hand raised, not one comment made out loud in the moment.
Everyone noticed, though. Every single person in that room caught it instantly. The irony was fully, silently registered across the entire class, exchanged only through a few quick glances between desks, never spoken, never needing to be.