Just because they are inmates does not mean they are stupid. And by S3, they have watched the show by now. They HAVE TO know what the cameras and interviews are about. If I were an inmate that wasn't featured, I would do things that they WANT to tape for their show, and then demand $. The other inmates MUST know how to play with these film guys, so I don't think we are getting a total natural behaviour out of them. The only natural ones were the first 2, IMO.