I too hate being a banjo bully, but this one seemed somehow ok.
A bluegrass band is on their way back from a gig South of the border when they get arrested for playing a banjo after dark. The judge quickly sentences them to death. At dawn the next morning the band finds themselves looking at the business end of a firing squad.
"Earthquake!" yells the guitar player which distracts the guards long enough so he can jump over the wall to freedom.
"Flood!" yells the mandolin player who jumps over the wall to freedom.
Now the banjo player is starting to catch on.
"Fire!" yells the banjo player as loud as he can...