The terrifying moment a successful gold dealer was Tasered in his home by a raider posing as a parcel deliveryman was captured in an astonishing clip of CCTV.
But in an unexpected twist, the would-be robber, Paul Grimshaw, ended up fleeing for his life - as two women in the house armed themselves with knives and chased him off "as fast as horses bolting".
Victim Nigel Blackburn's agonising screams prompted his fiancée, Pranee Rice, 29, and her friend, Mornrat Sangyang, 27, to courageously leap into action.
Just seconds earlier, Pranee had answered the door to the 'deliveryman', who insisted Mr Blackburn personally sign for a parcel.
The planned attack, at Mr Blackburn's home in the sleepy Leicestershire village of Hemington, near Castle Donington, was captured on film, and can be viewed below.
After seeing the shocking footage at Leicester Crown Court, Judge Simon Hammond jailed Grimshaw for eight years.
He publicly commended the two women for their "great bravery".
After wards, 56-year-old Mr Blackburn, who fell to the ground after Grimshaw shoved the sparking Taser into his neck, said he had feared for his life.
Paying tribute to his rescuers, the multi-millionaire, who has a successful jewellery business in Birmingham, said: "I think they both, possibly, stopped me from being killed."
Describing the ordeal, he said: "The deliveryman suddenly stuck a stun-gun into my neck and I can't begin to explain the pain - it was excruciating.
"I dragged him to the floor with me.
"Pranee and Mornrat heard me shouting and came downstairs as fast as two horses bolting, grabbed some knives and charged straight at him, screaming to get out.
"He must have been thinking, 'I'm not taking them on'.
"In fact, Mornrat, who we call Cookie went back to get a meat cleaver."
"Before they raced in, it seemed like it was happening in slow-motion.
Pranee said afterwards: "We were upstairs, heard the noise and just acted instinctively, without thinking.
"We're pleased the man is now behind bars and can't harm anyone else for the next few years.
"We're proud the judge praised our actions.
"It was very frightening but we'd do it again."
Grimshaw (31), of Victory Boulevard, Lytham, St Anne's, who fled empty-handed, admitted aggravated burglary and possessing a stun-gun with intent to commit robbery.
He told the police he was reluctantly recruited, under threat by a criminal gang, to enter the property on the evening of June 20 this year, intending to overpower the victim before others entered to loot the house. No-one else was caught.
Grimshaw left behind a clipboard with his fingerprints on.
Mr Blackburn, who suffered a cut arm as well as facial and neck injuries, has now moved home and has sold his car with a distinctive personalised registration number plate.
He said: "Sadly, it's left a legacy of immense fear and my partner won't sleep without a weapon next to the bed.
"I've worked really hard all my life and have changed everyday life because of people who don't give a damn. Tight security, and not going anywhere without protection, is now routine."
Mr Blackburn said the attack was "pointless" anyway, as he never kept valuables or large sums of cash at home.
Judge Hammond said: "It must have been absolutely terrifying.
"It was a professional job, involving others, who were after valuables or cash.
"When the fiancée and her friend appeared tooled up with knives the defendant thought he'd had enough.
"Both these women behaved with incredible bravery - and they were having none of it.
"They got some knives and chased him away.
"Mercifully the injuries weren't serious, although there are psychological effects.
"I'm publicly commending the two women in the house who I think behaved with great bravery in chasing him away."
Philip Gibbs, prosecuting, said: "The whole incident was shocking, as you can see."
Brian Williams, mitigating, said Grimshaw was "sickened by what he did and it was completely out of his league".
"He accepts what the women did was a brave thing and apologises to everyone in the house," said Mr Williams.
"When they appeared he went away and didn't seek to take on the two women."
