Well done murals and graffiti add a nice touch to buildings and structures and whatnot. I rather enjoy it. But when people randomly spray gang signs and dicks on sculptures and schools, then I'm like... alright, that's just vandalism... Seriously, when I was in like grade 3, someone spray-painted Jesus in a bukkake jizz storm on the slide... the playground was closed off for recess... I had no idea what it was then, but I get the picture now.