A landlord acted like a "raging bull" when he seized house keys from a man who was staying at his property.
Adriatik Vodo (48) pinned the victim against a fence and forcibly robbed him of his keys and mobile phone, leaving him with a dislocated thumb.
The man said he was subletting an apartment in the accused's building, but father-of-four Vodo insisted he had never seen him before.
Judge Marie Keane said Vodo had acted "disgracefully", but could avoid four months in jail if he was found suitable for community service.
Vodo, a taxi driver, had pleaded not guilty to robbing Ernest Iacob at Cabra Park, Phibsboro, last April 12.
Mr Iacob told Dublin District Court that Vodo "came toward me like a raging bull" and "ripped the phone out of my hand" after he had taken a photo of the accused's car registration.
Vodo walked off and when Mr Iacob followed and asked him to return the phone, he replied "What mobile?" and said: "Give me the keys for the apartment."
Mr Iacob refused, and Vodo then went through his tracksuit pocket. He tried to stop him, but Vodo managed to get the keys.
During the robbery, Vodo pushed him against a fence, Mr Iacob said. His left thumb was dislocated and his lip was "busted" after the attack.
In cross examination, he told defence solicitor Rory Staines he had been living in the apartment for a year at the time and had met Vodo on multiple occasions.
Vodo told the court he had never seen Mr Iacob before, and when he questioned him he replied: "Who the f**k are you?" He said he told Mr Iacob: "I own this place."
Vodo claimed he was holding the keys and Mr Iacob grabbed them, pushed him and ran. He followed him, and it took five to 10 minutes to get them back from Mr Iacob, he said.
He said the keys were his own property and denied using force to get them back. He also denied taking the phone.
Judge Keane said Vodo had used a "considerable amount of force", his behaviour was "simply outrageous" and he "took the law into his own hands".