Should any trolls get it in their puny brains to heckle Charlie Sheen tonight they will be dealt with swiftly by Radio City Music Hall security ... at least according to this sign posted in the lobby.
What are the chances?
Charlie Sheen -- No Heckling the Warlock!
4/8/2011 9:01 PM PDT BY TMZ STAFF
Get TMZ Breaking News alerts to your inbox