A dog owner taught her pooch to perform CPR in just 45 minutes after she saw the trick on Crufts.
Senior shelter officer Tania Butler, 35, said it took her Boxer Pixie, three, less than an hour to learn the life-saving move.
Now when Tania lies motionless on the floor, and is unresponsive, Pixie will leap into action and pound on her chest in exactly the right place.
She's got so good the animal management worker had to start putting a book under her top during training, to stop him hitting her so hard.
Tania said she taught her the trick just for the fun of it during lockdown - but hopes she'd be able to help save a life now if she needed to.
Tania, of Waikato, New Zealand, said: "I wanted to teach her a new trick, she knows quite a few and wanted to do something a bit different.
"She knows all her basic commands, competitive obedience, hungry hippos, jenga, back stall, arm jumps.
"Pixie is so very smart and insanely easy to teach, she loves her trick training."
Tania started teaching Pixie in April and said it only took the pooch two or three training sessions of about 15 minutes each, to master it.
Ms Butler has six dogs - three boxers, a pitbull, American bully and an American staffordshire terrier.
She added: "This is just a trick I saw Lusy Imbergerova and her gorgeous dog Deril do at Crufts 2017 and thought that was amazing and never forgot her routine.
"I just love the company of the dogs, they are real characters, and always make me laugh and cry too sometimes.
"I love training with them it brings me such joy and to see them have a love of what they do.
"Only a few of my dogs compete as the others are just not into and that's fine, they still amazing pets and the best cuddlers.
"I love taking them out on new adventures weather it be the forest or beach - I love my pack."
It comes after a dog walker was struck down by lightning, before Good Samaritans saved him by performing CPR.
CCTV footage shows Alexander Coreas walking his three dogs when a bolt of lightning hits him, knocking him face-first to the ground as his pets run away.
Workers at a nearby vet clinic in Spring, Texas, saw what happened and rushed to Mr Coreas' aid, performing CPR on him when they realised his heart had stopped beating.
