YS > catching a teacher doing something the Yeshivish velt considers wrong
so why not catch a teacher driving a car? A CAR! It might have a radio. It might take you to some places of disrepute and even some modernishe shuls.
I do agree that the problem is not with hte kids but the adults who conditioned them to value nonsense above respect to T’Ch or even just human beings.
BTW, if those teachers are Torah teachers, these children should be taught a halocha of asking the teacher in a respectful way – why were you doing X if the Torah says Y? (and in most cases, after the fact, so that there will be no hint of disrespect).