Callum Robert King admitted disorderly behaviour on licensed premises and will pay the fine at a rate of £200 per month.
Prosecuting advocate Roger Kane told the court how King, who is 26, was in the Barrack Street bar on June 28 last year at 2.30am.
He was said to have become involved in a physical altercation with a man he did not know previously.
King, who lives in Mooragh Promenade, Ramsey, was said to have pushed the man and said: ’If you touch me again I’ll rip your head off.’
A drunken brawl was said to have broken out and King was initially charged with assault causing actual bodily harm but that was withdrawn.
Defence advocate Jane Gray said that her client had no previous similar convictions.
Ms Gray said: ’The complainant had been bending over Mr King and looking aggressive.
’Mr King got up out of his seat and discussions became heated. A witness described both males as acting aggressively and a member of the public trying to separate them.
’Mr King says he was punched in the face but didn’t make a complaint. A few other people were involved but he accepts he should have let it go.’