A man from Hertfordshire says he and his wife could have died in an arson attack if it wasn't for the warning they got from their dog.
Joe Glavey was asleep in bed at his home in Hoddesdon when CCTV captured the attacker pouring petrol over his Mercedes at 1am.
Thanks to the dog's frantic barking, his owners woke up before the fire could spread.
Joe and his family have lived in Hoddesden for over 30 years but Joe say there had never been any problems until the street lights were turned off at night.
He claims since then other cars have been torched and there's been burglaries and bin fires which is why he installed CCTV.