A passenger who left her handbag in the back of a taxi scratched the side of the car when an argument broke out between her and the driver after he returned the bag to her.
Catherine Brady (50) panicked as she had medical supplies and insulin in her handbag, a court heard.
She had been drinking and had no recollection of the incident.
Judge John Cheatle adjourned the case to a date in October, saying he would strike the matter out if Brady paid compensation for the damage she caused.
The defendant, of Pinewood Green Lawns, Balbriggan, admitted a charge of criminal damage to a taxi cab last September 4.
Gda Eoin O'Brien told Swords District Court that the taxi driver collected Brady and he dropped her off in Balbriggan.
He later received a call from the company he worked for that Brady had left her handbag in the back of his vehicle.
The driver had not noticed the handbag, Gda O'Brien said.
The driver went to Brady's home to return the bag. There was a dispute, and during the row Brady got an implement and scraped the side door of the taxi and a rear tail-light.
The cost to repair the damage to the vehicle was €910, Gda O'Brien said.
He also said that Brady had "so much alcohol on board".
The court heard Brady had never been in trouble before.
Defence lawyer Patrick Jackson said Brady, a mother-of-three, was a "very vulnerable person".
She had been drinking and could not recall this incident.
At the time, "life had got on top of her", Mr Jackson said. However, he added that this was a "once-off incident".
There had been medical supplies, including insulin, in Brady's handbag, the court heard.
Mr Jackson said Brady wished to apologise to the court, and she had not come to the attention of gardai since.
The defendant was not a person of means, but was willing to pay compensation.