Word: vandal
Or, how vandals got such a bad rep.
They worked overtime is what they did. The vandals were a Germanic tribe who ripped through Northern Africa for almost two centuries. Even by ancient standards, the vandals tended to be a little cray cray. They got so proficient at the art of destructive plunder that by 455 A.D. they sacked the mother of sackable cities: Rome itself.
This without a single can of spray paint.