The poster art over the years, art with social critique in it, has always been on class war theme. It's been trying to make that point - that we are larger than they are. They may have guns and pepper spray and helicopters and F16s and the whole U.S. military on their side, but when it comes down to it, we still have the numbers.

Sometime when I was in my mid-twenties I noticed, "Hey, even I don't go into too many art galleries. Why? Because I don't like the vibe in them. If even I'm not going into galleries, then who goes into art galleries in the first place?" It's just a certain, very narrow percentage of the population.

When I was younger, when I was a teenager, the work was more satirical and funny and cartoony. And part of it was chops - if you have a more limited repertoire of stick figures and cartoon characters, they lend themselves more to humor than to tragedy.

The unusual thing about doing street poster art - or something with a conscious social critique in it - is that the artist thinks they're a little in control, focusing and trying to make a specific point. But even then, when you look at it a few years later, you realize you were just working through some of the usual feelings you were going through during that time.

As I developed as an artist and studied art history, I noticed that all the great works were dealing with the human condition. [Art] had humor in it. It had sex in it. But it also had sorrow running through it.

I think for an artist there are so many things to make pictures of now, that everyone else may be suffering, but at least artists will just be stimulated by it all.

If you make a street poster and literally paste it on the street in a city like New York, where it's such a mixed population and so densely populated, and it stays up for a full week and doesn't get covered up by something else or pulled down, you will have fifty thousand people who will have seen it. It will be the poorest of the poor - some homeless man who lives on the street will see it and probably appreciate it, or some businessman or landlord will see it. Everyone will see it. And whether or not they even realize that they saw it, on some level it's affecting their consciousness.