Today's art has been cancelled due to police activity.

Some people become cops because they want to make the world a better place. Some people become vandals because they want to make the world a better looking place.

Bus stops are far more interesting and useful places to have art than in museums. Graffiti has more chance of meaning something or changing stuff than anything indoors. Graffiti has been used to start revolutions, stop wars, and generally is the voice of people who aren't listened to. Graffiti is one of those few tools you have if you have almost nothing. And even if you don't come up with a picture to cure world poverty you can make somebody smile while they're having a piss.

You live in the city and all the time there are signs telling you what to do and billboards trying to sell you something.

But there's no way round it-commercial success is a mark of failure for a graffiti artist. We're not supposed to be embraced in that way. When you look at how society rewards so many of the wrong people, it's hard not to view financial reimbursement as a badge of self-serving mediocrity.

You're advised not to drink the replica Arab spring water.

If at first you don't succeed, Call an airstrike.