Lindsay Lohan’s father, Michael, is in trouble again, after he reportedly threatened to off his fiancee, Erin Muller and himself, after she tried to dump him.

Lohan was arrested quietly on April 6, 2009 for a threat he made over the phone to his fiancee, Muller on March 18, 2009.

He reportedly flipped out yesterday when he saw reporters as he walked into the court.

Lohan faces up to a year in jail over the incident. He’s due in family court in Westbury today, to talk about his child support debt of $12,000.