Mel Gibson allegedly spat in his stepmother's face.
Teddy Joye Hicks Gibson - who married Mel's father Hutton Gibson in 2001 - has requested a restraining order against the Lethal Weapon actor, claiming he had threatened her and tried to sabotage her marriage.
In legal documents, obtained by gossip website TMZ.com, Teddy, 78, claims Mel and his sister Maura despise her because she doesn't approve of the controversial medical treatments they've been pressuring Hutton to undergo to treat his various illnesses.
In the documents, Teddy alleges Mel and Maura manipulated their ailing father into filing for divorce as she says Hutton is a devout Catholic who doesn't believe in it.
She also claimed 93-year-old Hutton recently penned her a love note saying: "Our mutual love is permanent."