Sadly very true!
When I taught, 25 years in Secondary Education, I had them turn up with the Squits, Measles, Chicken pox, Pneumonia, a broken arm, raging fever and many other diseases. All untreated and all where the child was very obviously very ill. I've also had them turn up after sleeping in the coal cellar, lousy with head lice, lousy with fleas, lousy with both, in shirt sleeves during a snowstorm and smelling to high heaven. AND teaching is all long holidays and short days!
Bollocks!!!