Actress Christina Fulton made her emotional comments as she left the Los Angeles hospital where her 20-year-old son is being treated, TMZ reported Thursday.
She said, "My son is in trouble, he's in the hospital right now and he's under some really good care so that makes me very happy, but I'm pretty p*ss*d off because his father, um, he's affected by his father and that's why he's in that hospital."
Weston Cage was taken to the hospital Tuesday by his famous father after an alleged violent altercation at Hollywood venue The Farmer's Kitchen.
The younger Cage, a member of metal band Eyes of Noctum, allegedly "freaked out" and attacked his trainer after being told he could not eat an item on the menu, according to sources cited by the showbiz website.
The trainer put Cage on the floor, but the singer got up and continued to act bizarrely until police arrived and handcuffed him.
In April the 47-year-old Hollywood actor made headlines himself when he was arrested in New Orleans after a public argument with wife Alice Kim -- mother of his other son, Kal-El, aged five.
The "Face/Off" star was bailed out of jail by "Dog the Bounty Hunter" star Duane Chapman and in May the New Orleans District Attorney confirmed that no charges of any kind would be pursued against him.