Mark Kelly admitted behaving in a threatening and abusive manner likely to cause a reasonable person to suffer fear or alarm.

The 21-year-old, of Alclutha Avenue, appeared at Dumbarton Sheriff Court last week for sentencing.

Sarah Healing, procurator fiscal depute, told the court the incident took place at around 7.30pm on March 12 last year.

Residents of Merkins Avenue heard shouting and swearing.

When they looked outside, they saw Kelly.

Ms Healing said: “He appeared to be challenging other males in the street to fight.

“This behaviour continued and Mark Kelly continued shouting and swearing in the street until police attended in respect of other matters.” The court heard that police arrived soon afterwards and saw Kelly was still being abusive while being held back by another man.

Officers also saw he had lacerations to his head and appeared to be under the influence of alcohol.

They persuaded him to return to his own flat, which was nearby, and tried to establish from him what had happened. An ambulance was called.

Ms Healing continued: “As Mark Kelly was leaving his flat to attend the ambulance, he began pointing at members of the public and started shouting and swearing at them, saying: ‘You are getting it’ and ‘I’ll f****** see you all tomorrow’.” Kelly was taken to the Western Infirmary in Glasgow for treatment before being escorted to Clydebank Police Station.

Darren De’Rosa, defending, told the court his client had been worse for wear when the incident took place.

Mr De’Rosa said: “He had consumed alcohol and that was a factor in the offence.

“He is working and he hopes to sustain his own business in due course and move out of the area in order to distance himself from possible distractions and get himself on the right track.” Sheriff William Gallagher, sentencing, told Kelly: “This was unacceptable and unpleasant behaviour.

“Your behaviour impacted on other people and not restraining yourself, even when police intervened, is unacceptable.” Kelly was sentenced to 120 hours of unpaid work to be completed in six months.