A brute savagely battered a Paisley pensioner in front of his wife, leaving him with a fractured eye socket and unable to read properly.
David Pryce, 34, dragged Angus Harrison, 68, from his car and repeatedly punched and headbutted him, as he and his wife Catherine, 71, were loading shopping into their car in New Sneddon Street, Paisley .
Drugged-up Pryce also punched the windows of their red Peugeot hatchback, shouted and swore at them, and jumped in front of them as they fled from the rampage.
Paisley Sheriff Court was shown CCTV footage of the terrifying attack on the elderly couple as they were making their way home from a shopping trip at the Piazza Centre.
Prosecutor Keri Marshall told how Pryce, wearing a grey tracksuit and heavily under the influence of substances, made a beeline for Mr Harrison as the OAP was getting into his car.
She said: “He approached the driver’s side of the car. He opened the driver’s door. He attempted to gain entry.
“He said to Mr Harrison, ‘Are we going for a f****** drive then?’
“He said to him, ‘What do you think you are doing? We don’t know you.’
“Pryce replied, ‘I will f****** stab you.’
“Mr Harrison pushed past the accused and sat himself in the driver’s seat.
“He was holding his white stick, which he uses for mobility, across his chest at that time.”
The footage showed Pryce then became enraged and exploded in violence.
Ms Marshall said: “The accused grabbed Mr Harrison by the clothing and managed to pull him out of the car.
“He punched him twice to the face.
“He then placed him in a headlock.
“He proceeded to headbutt him, causing injury to Mr Harrison’s face and head.”
The court heard how Mrs Harrison came running round to the side of the car to help her husband.
Other witnesses in the car park also rushed over to stop the attack.
A group gathered around Mr Harrison, at which point Pryce broke away, causing Mrs Harrison to fall to the ground.
The couple managed to get into their car and were attempting to leave the car park when Pryce went on the attack again.
The prosecutor said: “The Harrisons eventually entered their car and managed to reverse out of the space.
“The accused remained. He continued shouting, swearing and began punching the windows of their car.
“Once the vehicle was out of the space, he stood in front of it, shouting and swearing with his arms outstretched in an aggressive stance.
“Mr Harrison managed to manoeuvre the car past the accused and drive off.”
Pryce appeared from custody and admitted charges of assault to severe injury and permanent disfigurement during the incident, which took place on September 3.
He also admitted a charge of public disorder by shouting, swearing, uttering threats and striking the windows of their car.
Mr Harrison went to the town’s Royal Alexandra Hospital, where doctors discovered he had a fractured eye socket. He was referred to the Queen Elizabeth University Hospital, in Glasgow, for treatment.
The court heard he has been left unable to read or see properly without closing his right eye because he is unable to focus.
Sheriff David Pender deferred sentencing to call for background reports.
He said: “There are very serious offences.”
Pryce will discover his fate on January 16.