Jackass Forever.Knoxville, who makes his final Jackass appearance in the film, said a stunt where he’s knocked into the air by a bull left him with severe injuries, including a broken wrist, broken ribs and a concussion that resulted in a brain haemorrhage.Speaking about the incident on Howard Stern’s radio show, Knoxville said: “Yeah, I got a brain haemorrhage from that. So my cognitive abilities were in steep decline after that hit.”He added: “No one in my family is happy with the stunts.