Anarchy! Within reason. All four backing members of punk rock outfit Screeching Weasel have left the band, after a disastrous show at South by Southwest in which longtime frontman Ben "Weasel" Foster taunted the crowd, then struck two women, before spending the rest of the show bitching about The SXSW Man, man. (Shaky footage of the Gig From Hell embedded above.)

The members—all recent additions—posted an open resignation letter to, decrying the behavior as "shameful and embarrassing... [It was] completely out of our control and in no way represent the band members' view points or moral compasses."

It's a dark day in Weasel history, friends. [Rolling Stone]