I had a girl that acted this oblivious around me once. Took her coming out of the shower at her apartment in just her towel to get me to realize, 'oh I'm a freaking dumbass'. Still took me a moment. Was pretty long pause while my brain was connecting dots xD
Not trying to minimalize anything here but in all seriousness, kohai is best girl. She solved the situation with no violence and got her to be MoL to heel. That is great 😇