We had a letter from the school a week or so ago ~ "To all parents, a child in the school is suffering from headlice, please check your child's hair regularly and take appropriate action."
We mentioned this to the boys on their ritual nightly head wash and inspection. "Oh yes" said the elder "It's XXX, he sits in front of me and XXXXX. We watch his hair moving all the time"
First thought

Second thought "Poor little sod, what are his parents thinking of"
Next day discussion at the school gate. All mothers agreed that it is a crying shame and that something must be done. Head teacher is hiding in his office but spotted so the mums descend on him. "Look we all know which child it is .... speak to his mother"
Head wails "I can't so that" ~ he is clearly horrified at the thought of confrontation.
"OK" says group "We'll sort it"
Another meeting at school gate. A Father steps forward "I know her well ~ I'll have a word"
Two days later .... lice all gone.