As well as being hugely distressing for the individual concerned?
here
It's quite long but the upshot of it is, it was alleged he was unfit to be a teacher because he swore at a coach over a decade ago, then a (frankly odd) sounding parent claimed he'd called her names in a meeting.
It must have been hugely stressful for not just him but his whole family, and his name has been dragged through the mud. AIBU to think this is ridiculous?