It began with a grouchy cat in a banana box and ended up in court after a dust-up between two men.
Brett Palmer, 42, appeared for a defended hearing in Westport District Court this week accused of intentional damage and assault using bicycle handlebars as a weapon.
The court wastold Palmer had his stepdaughter, her boyfriend Ben Temperton and the couple's 3-year-old son in his car on February 1.
Also in the car was Palmer's cat, in a banana box, to be taken to the vet for desexing.
The cat didn't enjoy travelling in a banana box and escaped. Mr Temperton told the court he had joked he would toss it out the window.
After the dust had settled, Palmer told the couple they could no longer live at his house.
The couple drove home and started packing their car, leaving Palmer to find the cat.
But as they were about to leave, Palmer returned and smashed their car window with a set of bicycle handlebars. Palmer said Mr Temperton had tried to run him over.
Judge David Saunders told the court that whatever had happened, the adults' behaviour did them no credit.
"It must have been extremely upsetting for a child to see adults losing control like this," he said.
He convicted Palmer and sentenced him to 150 hours' community work.