A drunken dad stripped off his shirt and viciously attacked a 15-old boy who tried to stop him stealing a bottle of Jack Daniels whiskey from a convenience store.
The teenager - who was working part-time stacking shelves - challenged Daniel Brien, but a court heard the 35-year-old father-of-two hurled a tirade of vile racist abuse at him.
The court heard Brien rained down up to 11 punches on the youngster, who was later treated for bruising.
A judge described him as 'a well-built masculine man' who 'set about' the terrified teenager.
Jailing Brien for the attack, Judge Recorder Paul Reid QC said: "It left him feeling traumatised and humiliated.
"The racial insults were disgusting."
Brien, from Little Hulton, Salford, pleaded guilty to racially aggravated assault and theft.
At Manchester Crown Court, he was jailed for 17 months and banned from the store concerned in Salford for two years as part of a restraining order.
The court heard Brien claimed his wallet was in his car as he walked out with the Jack Daniels, but Recorder Reid said he found it was his 'intention not to pay for the alcohol'.
Police and the victim's father were alerted and Brien was arrested.
In a statement read out at court, the teenager said: "I was racially assaulted and had some physical injuries.
"I feel humiliated. I was unable to attend school for several weeks. It was an unprovoked attack. He used disgusting racial language.'"
The attack happened at 6.45pm on September 5 last year as the boy was helping stack shelves at the store.
Prosecutor Justin Hayhoe said: ''This defendant went into the shop searching for Jack Daniels and Coke to buy. He looked as if he was going to pay for the items, but then told the victim that he had left his wallet in his car outside.
"He went to his car still carrying the alcohol and was with a friend who was in the vehicle.
''The victim told him he could not leave with the items, but the defendant then became aggressive. The victim was stood near the exit doorway when the defendant came back into the shop without his top on.
"The defendant was in an agitated state and start to throw punches at the victim. Around 10 or 11 punches were thrown with seven or eight connecting."
Mr Hayhoe said bare-chested Brien hurled racist slurs at the teenager as he attacked him.
The prosecutor added: "The victim could smell alcohol on his breath.
"The defendant then left the store and returned again shortly after delivering one more punch to the victim.
"He then remained in the store until his friend in the car came telling him to leave it.
"Police were contacted and so was the boy's father who came to collect him.
"The defendant was arrested on September 18. He told officers he had drunk five beers before going to the shop. He told the police that he had left his wallet in the car and was leaving to get his wallet.
"He said he was approached and assaulted by the 15-year-old and that was what motivated him to go back.
"He denied making any racial remarks. He said the boy fabricated that account to make matters worse.
"He suggested he had a mental health episode at the time. He said he was willing to pay for the alcohol but had left his wallet in his car."
The court heard Brien had previous convictions for violence and racially aggravated offences.
His barrister, Daniel Gaskell, said in mitigation: "This was a relatively short-lived incident and the majority of the punches did not make contact with the complainant. This is a defendant who is no longer a young man and at the age of 35, he knows his behaviour is wholly unacceptable.
'He is sober now and accepts his behaviour was shameful.”
Recorder Reid told Brien: ''What happened was an unpleasant incident.
"The victim was only 15 and had just started working at the shop when you came in. You had had a lot to drink and it was your intention not to pay for the alcohol.
"You said you were going to go and get your wallet which you had left in your car.
"When the victim questioned what you were doing, you became aggressive when he said you could not take the drink to your car without paying.
"You took the drink anyway to your car and returned to the shop with your top off.
''You are a well-built masculine man and you set about this man. Ten punches or so were thrown with seven or eight connecting. The person you were with in the car tried to get you to go away but you then went back in and punched the victim again.
"It is plain from the description of the victim and from yourself that you had had a lot to drink that day and it was alcohol you were stealing from the shop. Despite it not being the most serious of injuries.
"This was a young man who has now suffered psychological harm."
