POP QUIZ: How did Johnny Knoxville fuck up his hand?

A) A stunt went a little awry (as per) during the filming of Jackass Presents: Bad Grandpa. 
B) He put his hand through a plate glass window. 
C) He got spiked with ecstasy at a frat party and can't remember what happened.

Most of the time, you'd be right for choosing answer A. But this is not one of those times.

FHM caught up with the man himself to talk about his new movie, Jackass Presents: Bad Grandpa. Check out the interview in this here video to find out where he's going next and why he's pretty chilled about being doped.

Jackass Presents: Bad Grandpa is in cinemas now.