Hayden Hamilton, 26, was this week jailed for up to three years and two months over last year's violent confrontation.

He had gone to the Brash Avenue home on October 18.

A woman he'd had a brief relationship with weeks earlier was inside with a male housemate.

Hamilton was concerned the pair were sleeping together - which the court heard was untrue - and told the man he had a knife and would "stab you full of holes".

"Come outside you dog," he shouted.

"I'm going to come back every day until I put holes in you ... I have a knife."

Neighbours saw him banging on the window before walking inside and demanding to see if the man was there as he made a jabbing motion.

The male victim emerged from his bedroom armed with a baseball bat over his head, leading to a fight in the hallway.

Hamilton took the bat, said he was sorry and just wanted to talk outside, and the woman locked him out.

He said he would be back day and night to get the man out of the home and left before being arrested nearby.

The 26-year-old told police he'd just had a bit of an argument.

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"I cracked the s---s and went off my nana," Hamilton said.

"I know I shouldn't have."

He said the woman was horrified during the incident but he would never hurt her.

He wasn't actually armed with a knife.

The County Court heard the woman now feels unsafe in her own home and has panic attacks.

The court heard Hamilton's mother suicided when he was 15 which led to drug use and offending.

He had a reasonable relationship with his father until age 15 and his dad died three years ago after a battle with cancer.

The father-of-three has a long history of ice and alcohol problems and was drunk and on Valium at the time of the offence, and coming down from meth.

"I must make it clear not only to you but to anyone who feels entitled to try to control or terrorise their former partners by breaking into their houses and threatening them, or their friends, that they will be punished severely," Judge Michael O'Connell said.

He set a minimum jail term of 20 months.

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