O'Brien, of Monastery Heath Green, Clondalkin, pleaded guilty to public drunkenness and causing a breach of the peace at Station Road, also in Clondalkin, on January 19.
Blanchardstown District Court heard O'Brien was apprehended after a short chase.
wife faces life
The attorney for a California woman charged with severing the penis of her estranged husband said she "had a break from reality" the night of the attack.
Frank Bittar said during closing arguments that Catherine Kieu had been through a lifetime of trauma and abuse and snapped the night she drugged her husband, cut off his penis and threw it in the garbage disposal in 2011.
The jury is scheduled to begin deliberating on Monday on charges of torture and aggravated mayhem that could get Kieu life in prison.
A huge fireball burst from a pavement on a busy London street narrowly missing a passer-by standing just yards from the blast.
The explosion was said to have shaken nearby buildings and left a gaping crater.
Video footage of the blast shows one astonished by-stander running from the scene as flames shot from the ground. Safety experts are examining the scene.
Man steals $2k
Colorado police are looking for a well-groomed man suspected of stealing more than $2,600 worth of teeth-whitening strips, weight-loss pills, probiotics, condoms, and hair-growth products from several stores.
Officials said the man, wearing a sweater, tie, smart trousers and a neatly groomed moustache and beard, apparently used a coat that he was carrying to conceal the stolen goods.
He would buy a DVD before leaving as a possible cover for the door alarm activating.