Johnny Knoxville stopped by to promote his new MTV show, "Nitro Circus," and Howard told him he looked good - much better than the last time he came in (right after "Jackass 2" had wrapped).
Howard wondered how Steve-O was doing. "Fine!" Johnny responded. "He's been clean and sober since [rehab] ... he's done amazing."
Howard asked how Johnny had succeeded in getting Steve to rehab, so he explained that a bunch of Steve's friends decided to help — the last straw was Steve threatening to jump a mini-motorcycle from his apartment window onto the roof next door. "We got seven or eight or nine big guys," he said. "I took the camera from him and said, 'You're going and we're taking you.'"
Now that Johnny's divorced, Howard asked what Johnny did to his wedding ring tattoo. Johnny held up his finger and confessed: "I got it lasered."
Johnny told the crew about how he tore his urethra during a stunt, explaining how he has to flush it twice daily by sticking a tube into his penis — all the way up to his bladder.
Johnny claimed the process prevented scar tissue from constricting. "In the beginning it was [difficult]," he said. "It's not that bad anymore. I've gotten used to something horrible." Johnny added that breaking his arm or leg never phased him, but breaking his penis got his attention.