While you're improvising, you may come up with something which will break him up. As soon as that smile comes out, you know that, hey, we're having fun.

When I'm on stage, it's a little world I've created where I'm sort of the thing, so I have total control over everything that happens. When we're improvising, I'm with someone I totally trust. I know things are going to work out. I don't have those guarantees in life. There are no consequences on stage.