Takahashi and Sakie were shocked to such violence in front of them. Oh, that guy wasn't hurt, so no worries.
Hikari tried to describe a suspicious person in the halls, but it sounded just like a bear to everyone else.
Sakie briefly thought about using her succubus powers to get the truth from an unauthorized visitor, but thought better of it.
Boys will be boys and try to sneak pix of hot teachers. That was literal, in both senses, with Sakie.