although steve-o will do naked things. i'm more of the blunt-force-trauma die.'s happening ahead of time. jeff and i know who we want to do it. and if they protest like they don't want to do it, jeff has a way of-- you know, he'll either bulldog them into it or take them on a walk and be their buddy and talk them into it that way. he has a number of ways coming at the guys. >> trevor: i appreciate that. >> yes. >> trevor: encouraging people to get hurt. ( laughter ) of their own volition. >> secretly, they all want footage. if someone gets a really good bit, no matter how painful, they're like, "now i need to get one." everyone tries to top each other and it helps with the film. >> trevor: it really does help the film. johnny knoxville has evolved a lot over the years. you started the show at what, the age of 29, i think, on mtv, back in the day. you've gone on to do everything, the movies, tv show. everybody loves what you do. you have developed a rabid fan base, what was an evolution for me, one of the craziest stunts for people was speaking out after george f