The accused, who cannot be named to protect his victim, pleaded guilty to common assault, criminal damage and breaching protective bail conditions on Friday.
The police prosecutor told the court the accused had been in contact with his mother over a large sum of money he loaned her.
On February 23, he drove to his mother’s home in an aggravated state, intending to confront his mother over the debt.
Get in front of tomorrow's news for FREE
Journalism for the curious Australian across politics, business, culture and opinion.
READ NOWOnce there, he shouted abuse and threw a toolbox through the window.
His victim began filming the incident on her mobile phone.
MORE: Liberal leadership in doubt as Harvey, Francis circle
MORE: City of Rockingham to assume control of Aqua Jetty
MORE: Woodlands teen charting course to a career with NASA
The accused overpowered her and threw the phone on the ground.
The victim went to the accused’s car and got into the front seat.
The accused struggled with her and threw her out of the car and to the ground.
During the altercation the victim sustained a cut lip, fingernail scratches on her right arm and scratches to her hands.
The victim took out a violence restraining order against the accused.
Despite this, he approached her at Mandurah Court the next day and whispered in her ear.
The victim felt unsafe and security was alerted, who moved the accused along.
Duty counsel for the accused told the court that his client was upset when he arrived at his mother’s home.
“He regrets that it got to this,” he said.
“He intends to cut his mother and sister out of his life.”
The accused was placed on a six-month community-based order with program and supervision requirements.
He was ordered to pay $1000 for the window.