The picture of the guy pissing on the chair was a picture I had to do. I had the idea of this absurd act of pissing on a chair rather than in a toilet or on the ground, and this minimal act being so transgressive, even though no major harm is done.

I see my practice as picture making. Whatever is available, I use.

My staged work looks so real that people actually take it for documentary. But, in fact, that is my intention, to disguise the manufacturedness of it. Half of my work, or probably more than that, is staged.

The original interest in making pictures that don't directly depict came around '97 or '98, when I felt there was such an acceleration of images in the world, and that was before Flickr and so on. So I felt a need to slow down how one consumes photographs. With the abstract pictures, I was engaged in trying to find new images, but in practice, it was a bit like throwing a wrench in the spokes. The omnipresence of photography is at a level that it has never been in the history of the world. I feel really curious to now reengage and see what the camera can do for me.

Whatever pictures are put into the world, the balance needs to be readdressed, it needs to be observed. That's why I am also really questioning what a lot of photography has done since I began. I am not saying because of me, but I mean, photographing some friends partying and publishing the pictures meant something else in '92 than it does in 2011. And I find the younger generation is not questioning this at all today.

For me, a good portrait shows the fragility and humility of the person, and at the same time a strength, a resting in themselves.

I always think that we know so much more than one would have ever known before. But I don't know if that's really true.