Oh my god, did the teacher just faint?! Oh gosh, oh man, Minako may have just had a lesson on CPR, but that wasn't where her mind went in response to a man down, especially in a place that was so open about magical powers and the like. Minako pulls what appears to be a gun out of her bag and quickly presses it against her temple, seemingly nonchalant about this action despite being obviously alarmed about the teacher. "Persona!"

Guys is this girl about to shoot herself in the head.