Its not as rare as you think its happened a couple of times at my dd school
The first was at the nursery and all the kids were shouting. Fight , fight and some were crying the Teachers were like headless chickens.
After the second time two mums in year 5 to be fair the big mum did kind of jump the other mum the head wrote a letter any one found fighting will have the policed called and wil
Be asked to remove their child from the school
To be honest I just think those parents have no shame