That was certainly the case at Coffs Harbour Public School on Tuesday night in a shocking rampage which has left a trail of destruction and a hefty repair bill.
Alarmed residents contacted police at 11.30pm when they heard windows being smashed at the school in Salamander Street.
Officers arrived on the scene and chased two youths through the school grounds but unfortunately they gave them the slip.
The damage had already been done - an estimated $6500 worth.
The louts ripped five palings from a timber gate and used them to smash 22 louvre windows and two half windows at the girls' toilets, two staffroom windows and two more at an office.
They also forced open a roller door on the sports shed in the playground and once inside, smashed four windows and hurled paint cans and their contents throughout the interior.
Police found a pair of thongs at the crime scene as well as a number of empty beer bottles, and they've taken away items of interest for forensic examination.
The savage attack has left school principal Elaine Norman 'very disappointed', but she praised neighbours for their vigilance.
"Everyone is so attached to the school," she said.
Police have described the intruders as aged 15 to 16. One was a male with dark skin, a thin build, 165cm to 170cm tall, wearing at the time a dark hooded jumper.
The other is only described as having a similar height and a medium build.
If you have information which can help bring the offenders to justice, contact Coffs Harbour police on 6652 0299.