A burglar who tried to break into a workshop nearly fell on top of a couple who were working around-the-clock to provide NHS workers with Personal Protective Equipment.
James McConville and his girlfriend were working late in the workshop, off Longmoor Lane in Aintree, when the roof began to fall in.
James, who was in the kitchen at the time making drinks, ran into the workshop and saw a hooded man staring down at him through the hole.
The debris just missed his partner's head and the incident left her badly shaken.
CCTV footage captured the extraordinary moment, and showed James consoling his girlfriend who was visibly upset after the drama, which could have left them both seriously injured.
CCTV footage also captured a man running from the scene seconds after the incident at around 10.12pm on May 9.
James, who has used a 3D printer to make hundreds of PPE masks for front line workers during the coronavirus crisis, was annoyed that the incident interrupted his efforts to provide workers with free face masks.
He said: "It's hard to keep faith when things like this happen, especially when you've spent every waking hour of the past six weeks and thousands of pounds of your own money to provide PPE to our NHS and essential workers then something like this happens and crushes your spirits. Some karma right."
He said that production had to stop while he repaired the damage and made the building safe.
He added: "I looked up and saw a hooded person leaning over the hole, he looked me dead in the eye before running off over the roof scared.
"I didn't know how many of them there were at the time so I didn't want to open the shutters and give chase.
"Luckily, I was in the workshop at the time to scare him off and no one was hurt, Kathryn was using my laptop and pieces of the roof fell onto it just barely missing her head.
"It could have been a lot worse, but thankfully no one was hurt and nothing was taken.
"I'm just angry that it happened in front of Kathryn as it obviously shocked and terrified her."
James started making the masks on March 28 to help provide NHS staff and other frontline workers. with the PPE they needed.
His first post on Facebook received thousands of shares he was soon inundated with messages from workers in need of masks.
James has since used a collection of printers to make hundreds of masks.
He has spent thousands of pounds of his own money on the venture, which has supplied staff at the region's biggest hospitals with PPE.
To support James go here.
Anyone with information about the attempted break-in at the workshop should call police on 101 or Crimestoppers on 0800 555 111