 PLOT: When Lewis and Fuller hear Rusty Nail on the radio asking for  Black Sheep and Mamas Boy and realize he knows they are behind the  prank, Fuller calls Rusty Nail "Russell" on the CB. Nowhere in the  movie/additional scenes/commentary is the name "Russell" mentioned  as a name for Rusty Nail, so there is apparently no way that any of  the characters could have known Rusty Nails name.