The dog was rescued , and because his barking frenzy alerted neighbors and got them to call the FD, the dog was named a canine hero...Before an investigator checked out the blaze and figured out what had caused the fire!
I think it's his human's fault for leaving the electric lights on the tree lit while they were out.
(Saw this on a Discovery Channel special on dogs a few years ago. It may have been called "The Wolf in your Living Room". Think it was an Australian production.)
One family went out for the evening and left their dog "Lucky" in the utility room, as was their custom. When they returned, they found thier house was a pile of rubble and the dog wagging his tail. Seems he accidently turned on some sort of LP gas driven item (heater or something, I forget) and when the hot water heater came on, Bang! the dog was thrown clear of the explosion and was totally unscathed
In another bad dog story, a man was walking his dog and had a heart attack. He passed out on the ground. The dog, meanwhile, successfully kept potential rescuers at bay by standing over his master and barking/growling at them. Finally one of the family members showed up but it was too late.