Black Crowes Stage Crasher Gets Smashed with Guitar to the Neck

Here's a painful lesson for all stage invaders ... the Black Crowes do not find you "Hard to Handle" -- not when they've got guitars and mic stands to beat you down!!! This scene went down Sunday during the rock band's Melbourne, Australia concert -- as they started playing "Stare It Cold," one rowdy fan looked like he instead wanted them to play "Twice As Hard" ... 'cause that's what he got. The guy jumped up…