Despite the sophomores being Shadow hunting machines, the teachers think that a bit of childish fun might be good for them, and give them their blessing for trick-or-treating as long as they're back before curfew! They manage to take quite a few toiler paper rolls with them, and successfully TP three houses before, on their fourth house, they nearly get caught! It's fine for everyone to escape without any repercussions, as long as no egging takes place.