My dc love drawing on the path outside our house with chalk. The path serves only our house plus two others, so is seen by very few people. Today I was hanging my washing out and heard my neighbour talking on the phone about how my dc had been 'vandalising' outside her house again and how she'd be telling me to put a stop to it if it happened again. I suspect she knew I was there and it was her passive aggressive way of telling me to make them stop.
If it were outside her house directly (it's not) or offensive words or pictures (actually it's generally their names/flowers/hearts/animals) then I could understand, but surely letting children chalk on paths isn't wrong? Aibu to politely tell her they won't be told to stop if she broaches it with me next time?