Burnley Crown Court heard how Peter Lancaster was set upon by out-of-control Jonathan Farrell (19) and his brother Karl (23) in front of horrified members of the public as his girlfriend and staff tried to stop the onslaught.

Mr Lancaster, who knew his assailants, had passed the time of day with Jonathan Farrell, who told him: "I'm angry," before the melee in which the victim was grabbed from behind, pushed, thrown into displays, threatened, punched, kicked, had cans thrown at him and was headbutted.

The fracas was captured on CCTV and the defendants were said to be ashamed when they saw the footage. Staff eventually managed to get the brothers out of the store.

Sentencing, Judge Heather Lloyd said: "This was mindless, drunken violence in a public place on an entirely innocent victim and entirely innocent bystanders were sucked into this frightening incident."

The judge said there had been no provocation, both brothers were developing a pattern of gratuitous, alcohol-fuelled violent behaviour and their parents must be at their wits' end.

The Farrells, of Craven Court, Earby, admitted assault allegations on April 4th. Both have previous convictions.

For Karl Farrell, Elizabeth Nicholls said when sober the defendant conducted himself well, was usually in full-time work and could be a useful member of society. He was not working at the moment because of a serious injury.

Robert Elias, defending Jonathan Farrell, said the defendant was embarrassed when made to watch the video of what happened. His conduct had been boorish, drunken, loutish and was unacceptable.

Mr Elias went on: "The fact he is embarassed and ashamed of his behaviour is, in itself, refreshing and is perhaps indicative there can be a salvage operation."