Prison warder Adrian Ismay, who initially survived a booby-trap bombing, joked with his wife Sarah Ann - "I don't think we will go to the rugby tonight" - as he instructed those who pulled him from his VW van how to treat and bandage his wounds.
Belfast Crown Court also heard that the 52-year-old father of three, as if reading his wife's mind, "wiggled his feet" to show that he had not lost a limb in the no-warning blast outside their Hillsborough Drive home in east Belfast.
Details of the exchange between husband and wife were given as former St John's Ambulance man Christopher Alphonson Robinson went on trial on Monday for the March 2016 murder of Mr Ismay who'd worked with him as a volunteer first-aider.
The 48-year-old from Aspen Park, in the Poleglass area of west Belfast denies the murder of Mr Ismay, who was initially allowed home after treatment for shrapnel wounds caused by the undercar improvised explosive device.
But just 11 days later, on March 15, 2016, he was rushed back into hospital where he died from a pulmonary embolism as a result of clotting caused by the blast sharpnel.
However, in the days beforehand, Mr Ismay, confirmed in a witness statement that the two men had in past years worked together in St John's Ambulance, and that Robinson would have known he was a prison officer.
In a detailed opening before Mr Justice McAlinden, the prosecution told the non-jury Diplock style trial that Robinson was "part of a joint enterprise" to plant the undercar device, allegedly transported to the area in Robinson's sister-in-law's Citroen C3 car.
Robinson allegedly picked up the car keys from the hostel where his brother worked, and that the Citroen was captured on CCTV travelling through part of Belfast to the street of the prison warder's home.
Footage taken from an undertakers' in the street, showed a Citroen car driving by, and then parking up, it headlights off. A man is also seen running and getting "oddly" into the back of the car, behind the driver.
When seized two days later, two child seats were found strapped in the car, one in the front passenger seat, the other on the rear seat immediately behind.
The prosecution further contended, that when all of the "evidence is viewed in the round there is an inescapable inference that Christopher Robinson was involved in the joint enterprise to plant the device under Mr Ismay's car with the intention of killing or seriously injuring him".
A senior Crown lawyer said while he "did not seek to ascribe a precise role to him ... we do not have to ... the court may, in due course, be satisfied as to that role .... in that he provided, at the very least, intentional assistance or encouragement to the joint enterprise, to plant the device, cause the explosion and murder Mr Ismay".
In addition to the murder charge, Robinson also denies causing the explosion which initially injured Mr Ismay, who, the court heard, had confirmed in a statement prior to his death, that the two men had been in the St John Ambulance together, and that Robinson would have known he was a prison officer.
Robinson also denies a third, alternative count, of providing his sister-in-law's Citroen C3 car, knowing or suspecting it would be used for the purposes of terrorism.
The court also heard that in the weeks leading up to the booby-trap bombing, and three days before it was planted Robinson had allegedly looked up the profile of Mr Ismay, who was also a volunteer member of the Community Rescue Service.
It was further claimed that Robinson had also emailed the CRS about volunteering, but failed to attend an arranged meeting in October 2015.
Then in the hours and following the bombing, he had shown a high level of interest in the attack, visiting a number of internet news sites.
The court also heard that during interviews between March 7, and 11, Robinson provided two prepared statements, and had given no comment answers to the questions asked of him.
The prosecution claim that in the first prepared statement, he'd lied about his movements and whereabouts on the evening of March 3, while in the second he denied being a member of the IRA.
The trial is expected to last several weeks, and continues on Tuesday.