Confessed Florida school shooter Nikolas Cruz would throw chairs, a dog bowl, a drinking glass — seemingly anything he could get his hands on — during violent assaults on his adopted mother, according to details of the more than 30 police incident reports revealed Saturday.

Once, the teen even hit his mom, Lynda Cruz, with a vacuum cleaner hose, and cruelly called her “a useless bitch’ according to the reports, obtained by CNN.

Cops were called to the home most recently in September 2016, months before the the mom, Cruz, and his little brother moved from the quiet, prosperous neighborhood of Parkland, Broward County.

One report in particular, from January 15, 2013, stands out for showing the then-14-year-old’s volatile temper.

The mom told cops that when Cruz refused to go to school that day,l she took away his Xbox “privileges,” hiding the game system away in her vehicle.

Enraged, Cruz “retaliated and threw a chair, dog bowl and a drinking glass across the room,” she told cops, according to the report.

Nikolas called her “a useless bitch,” along with other profanities she declined to share with the police.

During that visit, the mom also told cops that Nikolas had a “history of developmental and learning disabilities,” including Attention Deficit Hyperactivity Disorder, and was “increasingly irate.”

Nikolas was cuffed and seated in the back of a police car as the cops interviewed his mom, CNN reported.

A counselor from the nearby behavioral health facility where Cruz had been a client for years showed up and “gave Nikolas his prescribed medication,” the report said, after which the boy “began to calm down and cooperated.”

Four days after Cruz’s 18th birthday, Lynda called the Broward County Sheriff’s deputies because they’d been fighting over the paperwork Cruz needed to get a Florida State identification card.

The mother was worried, she said then, because he’d mentioned wanting to get a gun — and had started “cutting his arms … to get attention.”

The long and frequent history of police reports was just another warning sign of a teen on the downslope to a deadly rampage.

Other neighbors have described him abusing animals, including setting his family’s dog on another neighbor’s piglets, or shooting at their chickens with a B.B. or pellet gun, according to the Miami Herald.

Lynda Cruz died in November from complications from the flu.