My first impression of these scriblings on a public wall were "cute!" . Guess I was imagining some kids playing teacher or found a creative way to practice maths., nevermind the vandalism.
That made me realised how my level of tolerance changes towards different kinds of graffiti. Example, unappealing ones = crap & eyesore, where as if I see more colours, slightly artistic graffiti, I'd say more please! How hypocrite of me.
So tell me, which category do you belong to?