MJ Fans Shut Up or Beat It!

9/21/2011 3:57 PM PDT

MJ Fans -- Shut Up Or Beat It!

Some Michael Jackson fans who want to see their brand of justice meted out against Dr. Conrad Murray just got a stern warning from the judge's staff -- they'll be thrown out of court if they don't shape up.

Dr. Murray was in court today on some pretrial matters.  At one point the lawyers and Judge Michael Pastor went into chambers for a chit chat.  While they were gone, some MJ fans were staring Murray down and giving him dirty looks.

Murray then complained to the bailiff, who walked over to the fans and made it clear -- if they do it again they'll be thrown out of the courtroom.