It's been a little while since we've heard anything too outrageous about famous monster Charlie Sheen. But, while Sheen's hardcore tiger blood days may be behind him, the Hollywood Reporter claims that he has skipped several days of work on the set of FX's Anger Management, which is now two thirds of the way through its 100-episode order. THR's sources say the absences have resulted in delayed production, with some scenes being shot with stand-ins. Sheen's agent denies this, but other members of the Anger Management cast are said to be so irritated that they've threatened to stop working themselves if Sheen's bad behavior continues. That strategy might be smarter than waiting around to get Selma Blaired.