It's been a fascinating thing because we didn't really know how to write when we started South Park at all. It's been like, we've just sort of grown up a bit and it's amazing to just see how, if you take Butters and Cartman and put them in any scene, it works.

I got into this little habit of architecture and building. I designed a house in Colorado and one in Hawaii. The idea is supposed to be build and sell - but then I can never bring myself to sell them.

If we have a great idea, we'll go, 'Oh, this could be a cool movie.' Or really for us, it's more like, 'Oh, this is a really bad idea. Let's do this. This seems really stupid.'

My dad was just a big Joseph Campbell nut.

I bought a house for my mom, I bought a house for my dad, I bought a house for my sister.

My fear is that, as soon as I get married and have kids that I'll kind of do what a lot of people do and suddenly start making, 'Now I'm gonna make films for kids.' I really hope I don't do that.

In terms of the creative side of it, it's really been a thing where you come up with the funny stuff is usually at a bar or out talking to people or whatever.

It's funny because I think a lot of it is simply... We've never considered ourselves satirists, but because we're on Comedy Central and because we're South Park on Comedy Central, we can do any topic we want.

No, writing musicals is the hardest thing in the world. And it was really funny, because I remember when the South Park movie came out, there were some critics that said, 'Well it's obvious that in order to get it to be 90 minutes they filled some time with music.'

I don't want to say never, but I hope I don't become that 'take me seriously now' guy.