He says, "Sieg Heil!" and then captures their reaction.
The left is finding no humor in this whatsoever. The boys clearly know how to tweak the liberal tyranny, except for the weirdo in the upper right with gunshot wounds to both earlobes, who has predictably become a hero to the outraged for his passive resistance. The guy front and center left goes even further, flashing the secret sign of white nationalists everywhere.
Sieg away, I say, good old Badger State of mine.
