(Cover) - EN Showbiz - Johnny Knoxville has confessed that he finds it exhausting being in the company of his Jackass collaborators.

Johnny is best known as one of the stars of hit television and movie franchise Jackass, where he completes madcap stunts with co-stars including Bam Margera and Steve-O.

Johnny was overwhelmed by the success of last years Jackass 3D movie, and in a joint interview with producer-and-star Spike Jonze and director Jeff Tremaine has admitted he still suffers from nerves around the Jackass crew.

No way, replied Johnny when Empire asked if he and his co-stars can let their guard down around each other.

If someone leaves their beer while they go to the restroom, its like, Were about to get footage. It does get exhausting.

Spike concurred that the men never stop thinking of pranks even if the cameras arent rolling. He admits they can all be violent towards each other, but everything is done in jest.

My good friend Jeff Tremaine kicked me in the balls on the red carpet at the premiere. That was very Jeff Tremaine, laughed Spike. (C) Cover Media