People are fond of using military terms to describe what they do. We call it bombing when we go out painting, when of course it's more like entertaining the troops in a neutral zone, during peacetime in a country without an army.

I like to think I have the guts to stand up anonymously in a western democracy and call for things no-one else believes in - like peace and justice and freedom.

I have a theory that you can make any sentence seem profound by writing the name of a dead philosopher at the end of it.

Policemen and security guards wear hats with a peak that comes down low over their eyes. Apparently this is for psychological reasons. Eyebrows are very expressive and you appear a lot more authoritative if you keep them covered up. The advantage of this is that it makes a lot harder for cops to see anything more than six foot off the ground. Which is why painting rooftops and bridges is so easy.

I know street art can feel increasingly like the marketing wing of an art career, so I wanted to make some art without the price tag attached. There's no gallery show or book or film. It's pointless. Which hopefully means something.

Film is incredibly democratic and accessible, it's probably the best option if you actually want to change the world, not just re-decorate it.

Keep your coins, I want change.