Mel Gibson

Apparently, Mel Gibson never learned his lesson.

In 2006, the Oscar-winning actor apologized for the highly publicized anti-Semitic remarks he made during a drunk-driving arrest, but his latest racist rant proves he was never truly sorry.

RadarOnline.com posted an audio clip of Gibson’s newest profanity-laced racist tirade, this time directed at ex-girlfriend Oksana Grigorieva.

Gibson called Oksana, the mother of his child, a whore and said that the way she dressed would get her "raped by a pack of n***ers."

"I am going to come and burn the f**king house down... but you will blow me first," he threatened.

The couple, who separated in April, are going through a bitter custody battle over their young daughter. Grigorieva alleges that Gibson knocked out her teeth and she made the tape because she feared for her life. The Los Angeles Sheriff’s Department is investigating the allegations of domestic violence.

The actor, whose mother was born in Ireland, was dumped by the William Morris Endeavor agency last week, following the death of Gibson’s long-time agent Ed Limato.