My lawyer's opinion is that the cops might not actually be able to charge me with criminal damage any more - because theoretically my graffiti actually increases the value of property rather than decreasing it. That's his theory, but then my lawyer also believes wearing novelty cartoon ties is a good look.

Art is not like other culture because its success is not made by its audience. The public fill concert halls and cinemas every day, we read novels by the millions, and buy records by the billions. 'We the people' affect the making and quality of most of our culture, but not our art.

I'd been painting rats for three years before someone said 'that's clever it's an anagram of art' and I had to pretend I'd known that all along.

Painting something that defies the law of the land is good. Painting something that defies the law of the land and the law of gravity at the same time is ideal.

If you want someone to be ignored then build a life-size bronze statue of them and stick it in the middle of town. It doesn't matter how great you were, it'll always take an unfunny drunk with climbing skills to make people notice you.

The holy grail is to spend less time making the picture than it takes people to look at it.

Although you might have to creep about at night and lie to your mum it’s actually one of the more honest art forms available. There is no elitism or hype, it exhibits on the best walls a town has to offer and nobody is put off by the price of admission.