Pop! Then Scream! - After failing to land a rail grind on his brand new skateboard, Mason snaps his leg in two.

Shooting Kneecap - Thinking that he is alright after a fall, pro-snowboarder Eddy gets up only to find that his kneecap has shot out of his skin.

Using Your Head - Tony's face slams into the ground when he fails to complete a rail grind.

See If You Can Stomach This - In this story, which features yet another failed rail grind, skater Bruce manages to tear through both his small and large intestines.

Scarred In Two Spots - A trick goes horribly wrong when Dean snaps his arm in half.

Celebrity Scar: Steve-O

Steve-O, most notable roles in Jackass and Wildboyz, tells the story of the time when Johnny Knoxville accidentally stabbed him with a samurai sword.