I had to use the tactic one time in my sons school years.
My son in his pre teen years was exactly like me. Hyper. Energy. On the move. Constant go. He also, when he was excited about any subject, would talk fast...real fast. Didn't matter the subject, if he was engaged he spoke real fast..... if he had no interest he did not. It would happen in class when he became involved. So, our first contact with a teacher who thought he had a speech impediment. OK.... Meeting, we listened and they wanted to put him some sort of class...but I said no, he doesn't have an issue, if he speaks quickly in your class your doing your job...he is involved....So a few weeks passed and apparantly my answer wasnt good enough....So this time we needed to meet with others.
My wife knew I had reached my "happy" point and I invited her to stay home. But she went anyway. We sit down, two or three intellectual looking types, exchange pleasantries and the head honcho said something like " we're here to speak about your sons problem".... I which I interjected myself, sternly, somewhere between wild eyed look and controlled rage. I really don't remember everything I said, but apparantly I got my point across and we never had another issue.
I don't know where the father is in this story, but this lady needs some assistance in the form of a screamer.