A father-of-three got into a pub brawl with three other men, smashing stools and glasses in front of customers with children, a court has heard.
Paul Reynolds (38) was identified from CCTV as being one of the men involved in the fight.
Judge John Hughes gave him a six-month suspended sentence after finding him guilty.
He also ordered him to pay compensation for the €200 worth of damage.
Reynolds, of Windmill Park, Crumlin, had denied violent disorder and criminal damage.
Dublin District Court heard the incident happened at Frehills pub in Crumlin on July 29, 2017.
Gda Una O'Brien told the court she arrived at 5.20pm and witnessed the damage at the rear of the pub - two bar stools, pint glasses and a picture frame had been smashed.
There was evidence of a fight having taken place.
Gda O'Brien identified Reynolds and others from CCTV, saying she knew him from her work in the community.
On the footage he was seen wearing a black T-shirt and entering the pub with others, she said.
After the fight broke out, men were seen struggling with each other and picking up bar stools.
In the footage, a young child was seen sitting at one of the tables with a man.
Two other gardai said they also identified the accused from the video.
Reynolds would say he had never met the officers before, his lawyer said. He would also say he had lived in Kilmainham between 2015 and 2017.
He said there was no fingerprint or DNA evidence and the CCTV footage was "unclear".
The court heard nobody else was prosecuted.
A state solicitor said the accused had "very distinctive physical characteristics".