My friend has a 4 year who has regular 'meltdowns' where she kicks/punches mum, cries, shouts, screams etc. In these situations Mum keeps trying to restrain her/tell her to stop which makes her daughter worse. Last night my DD had a playdate with her and her DD had a big meltdown, my friend was in tears asking what she should do with her and whether she should see the doctor about her DD. She said my DD never behaves like hers and so there must be something wrong with her, but in my opinion it's normal (albeit bad) behaviour. AIBU?