A man knocked a nightlclub reveller unconscious after being told he was wearing a “Brokeback Mountain shirt”.

Jamie Mcanulla, 28, punched 24-year-old Craig Sewek on the dancefloor of Izi nightclub in Witney town centre on November 23, 2008.

Mcanulla, of Witan Way, Witney, denied inflicting grievous bodily harm during a trial at Oxford Crown Court last week, but was convicted on Monday, by a 10-to-two majority, of the lesser charge of assault occasioning actual bodily harm.

He had maintained he was acting in self-defence after Mr Sewek had jokingly referred to his lumberjack-style shirt as similar to those worn in the film about homosexual cowboys.

Jurors saw CCTV of the incident in which the defendant, who admitted drinking “about eight pints of Foster’s and two shots”, punched his victim to the floor before running off.

Mr Sewek, who has no memory of the attack, suffered a fractured cheekbone.

The jury also heard Mcanulla had previously admitted a charge of ABH after punching a man in the face at 1am outside Nortons Cafe in Witney in June 2003, and had admitted two counts of battery after a row near a Witney taxi rank at 1.30am on January 27, 2007.

Judge Anthony King bailed Mcanulla to be sentenced at Reading Crown Court on March 12.